ca.kayak.com is also available in French. Voir le site en français.

Prices are in Canadian Dollars.

Find cheap flights from Ontario to Montreal Trudeau Airport

ONT - YUL

Find cheap flights from Ontario to Montreal Trudeau Airport

Round-trip
Economy
Ontario (ONT)
Montreal Pierre Elliott Trudeau Intl
Wed. 27/1
Wed. 3/2
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Montreal Trudeau Airport

Good to know

Low season

December Best time to beat the crowds (28% less expensive on average)

High season

May Most popular time to fly (35% more expensive on average)

Average price round-trip

C$ 558 (avg. price over the last 2 weeks)

Good deal one-way

C$ 223 or less

When to book flights from Ontario to Montreal Pierre Elliott Trudeau Intl

Estimated round-trip price
Average price per month

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 283 or less one-way.
  • High season is considered to be April, May and June. The cheapest month to fly is December.

FAQs for booking Ontario to Montreal Trudeau Airport flights

How long does a flight from Ontario to Montreal Trudeau Airport take?

Which airlines provide the cheapest flights from Ontario to Montreal Trudeau Airport?

How does KAYAK find such low prices on flights from Ontario to Montreal Trudeau Airport?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Montreal Trudeau Airport?

What is the Hacker Fare option on flights from Ontario to Montreal Trudeau Airport?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Montreal Trudeau Airport?

Top 4 airlines serving Ontario to Montreal Pierre Elliott Trudeau Intl

Scores according to KAYAK customer reviews

7.9
Delta
Overall score based on 28,930 reviews
8.1
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews

Cons: "Seat could have been more comfortable"

Pros: "quick easy flight"
Cons: "sockets to charge electronics"

Pros: "Delta refused to let us reserve a bassinet seat, and kept telling us to ask them later. They ultimately were not able to to provide one. They were the least accommodating of all the airlines we have asked."
Cons: "Better customer service."

Cons: "being on time"

Pros: "we could not get a seat until we arrived at the airport."

Cons: "Take off on time"

Pros: "This is a delayed flight after having my flight to the previous night delayed to the extent that I could not take it and make my connecting flight out of Minneapolis."
Cons: "This is a delayed flight after having my flight to the previous night delayed to the extent that I could not take it and make my connecting flight out of Minneapolis."

Pros: "N/A"
Cons: "N/A"

Pros: "Reliable Airline - on time - kept up to date on flight timing - Great crews."
Cons: "Good stuff."

Cons: "Food. Phone charging at seat, entertainment screen."

Pros: "The crew was okay. Seat was uncomfortable. Fold down table was broken."
Cons: "Delayed several times. switched to a later flight hoping that flight would not be delayed. That flight was delayed. I had to sit on the plane for over an hour before we took off. Didn’t make it to Chattanooga until almost12 am. hoping to fly delta for next trip to Dominican Rep. but now I’m unsure"

Pros: "Despite boarding late, and sitting on the tarmac for half an hour since we missed our take off time, and having to move passengers around to balance the weight on the plane, we made it home alive."
Cons: "We landed over half an hour late. Flight attendants needed to move passengers to balance the weight on the small plane, and asked for "volunteers." When there were none, the FA stood in the aisle and said we just weren't going to take off if nobody volunteered. They should have just MOVED people."

Pros: "Crew was amazing, flight was much more comfortable. Nice selection of drinks."
Cons: "The snack on the flight was brioche with a Cajun spread. The bread was great but the spread was too spicy for my tastes."

Pros: "The crew was amazing"
Cons: "Ran over 2 hours late with no explanation"

Cons: "Slow WiFi"

Cons: "We experienced a one hour ground delay at Sea-Tac which was unrelated to our airline. The pilot kept the passengers informed with timely updates, and we finally departed about when the pilot predicted we'd get away."

Pros: "Crew was great."
Cons: "When all overhead bins were full, they should have allowed those who didn’t need to check their carry on to board the plane before those who needed to check their carry on. Very unorganized at gate."

Pros: "I had a very comfortable seat, it was a very good experience overall."
Cons: "Unfortunately had flights delayed which forced me to arrive home much later than originally planned."

Cons: "Was refused to use the 1st clas restrooms but 10 minutes layer the flight attendant allowed an older gentleman and a lady to use them. I was in 10A with my service dog"

Cons: "Even the comfort seats are crammed together too close. One can barely move. Dreadful"

Cons: "Everything was good!"

Pros: "I was rerouted through Detroit after it was apparent I would miss my connecting flight. The flight was good and I have no complaints."

Pros: "There was no flight booked by Kayak although I paid for my trip. I’ve addressed this 3 times & still have yet to receive a call from customer Service."
Cons: "Poor service"

Cons: "staff wasn't very friendly"

Pros: "On time"

Pros: "Smooth flight, on-tome departure"
Cons: "Service in business class left a little more to be desired. I had to ask for food and drinks, because I feel off to sleep in the first round. Came to Gate early, but had to wait for agent to put the jet bridge. Only one person was available."

Pros: "Gate Agent was extremely helpful and compassionate regarding making sure our family (traveling with adolescent children)was accommodated ."

Cons: "It was very hot in the cabin during the flight. Several passengers noticed."

Pros: "My seat was randomly the exit row, so more leg room and pilots made great time"
Cons: "Left 20 minutes late because of travel agents"

Pros: "The flight was fine"
Cons: "Delta does not transfer your luggage in Canada even if they say they do. It will not make it to your final destination"

Cons: "The flight attendants weee rude, and no bar service"

Pros: "After flight was cancelled, rebooking was easy and quick on the app."
Cons: "Flight was cancelled. flight attendants were grumpy. One of the tightest seats I've flown in economy. No room in overheads so I had to stuff my winter coat between my legs with my backpack under the seat in front of me. Was basically wedged into the seat with my stuff."

Pros: "On time flight arrival"
Cons: "Baggage Claim was very disorganized. They indicated bags were to be picked up at a carousel that was under construction. When we went to the service desk, they directed us to another carousel which was incorrect. There was no announcement made and there was a delay in updating the baggage claim board."

Pros: "it was easy to navigate ."

Pros: "Flight on time"

Cons: "The flight left three hours late while the crew was waiting for an oxygen tank to arrive. We were boarded onto the plane after it was nearly an hour and a half late, then waited in out cramped seats for another hour and a half as we continued to wait for the same piece of equipment. At one point a Delta employee announced over the plane's PA system that we'd be getting vouchers to compensate us for this absurd delay, but there was no explanation of how to claim those vouchers."

Pros: "Boarding was easy, flights on time Wi-Fi available (although I didn't use it)"
Cons: "Seats rather crowded in coach, small plane so it was also a bit noisy"

Cons: "I was seated in first class, and due to some catering mix-up, no meal was served. I was given a banana and crackers which was very disappointing since I hadn't eaten in 8 hours and was starving. No on board entertainment whatsoever."

Cons: "Very uncomfortable seats Oddly shaped overhead bins, unable to put standard sized bags overhead, meanwhile they fit in planes of other major airline companies such as American Airlines. No food options, only sweet biscuit which contains soy and milk."

Cons: "The flight was delay for 3 hours and they only give us chips and water. They didn't explain well what was the problem. The plane was dirty inside and the seats werent comfortable at all, the plane was making weird noises. There is no window in the 11A Window Seat. Really really bad service at all."

Pros: "Plane was clean, attendants were friendly, and food was fine."
Cons: "I had a flight from Detroit to Montreal. Tried to check in and DTW was not a choice on the westjet website and so I physically could not check in. I realized the flight was technically operated not by WestJet, but Gojet. Went to Gojet's website and was told that Delta took care of all of their ticketing and such. Went to Delta's website, entered my ticket number and card number but I was not in the system as I was given all WestJet info (not Delta's). Luckily the baggage check in people figured it all out."

Pros: "Clean plan and efficient boarding procedure."
Cons: "Horrible delay. Took off almost two hours post originally scheduled time."

Pros: "Nothing"
Cons: "I could not check in on the kiosk and I had to go to two agents before they could find my reservation. The lines were extremely long and the customer service was poor."

Pros: "Excellent flight crew, good selection of snacks, excellent seat and leg room."
Cons: "Lavatory was unusually smelly no charging port"

Pros: "The Delta planes on both legs were comfortable and the crew very pleasant."
Cons: "The check in lines were chaotic and I had already checked in online. I just needed to drop off my baggage, so to save time due to my early flight I paid more for the curbside check-in."

Cons: "Almost everything"

Pros: "Crew was attentive, kept us informed throughout, and were friendly. Landing was smooth."
Cons: "Bathroom ran out of tissues and toilet paper halfway through the flight. Alerted the crew, and they added tp. Bathrooms seem to have gotten even narrower, barely any room to move in there! Also, we had to sit on the tarmac after landing for 30 min due to gate traffic. A few minor inconveniences, but overall tolerable."

Pros: "Free movies/TV is a great amenity. Overhead bins were full by the time I boarded, so I gate-checked my bag. The staff was helpful and accommodating, which made that process quick and easy."
Cons: "Boarding is chaos. There's got to be a more efficient way than zones."

Cons: "Did not have the movie that showed in the sky magazine. The touch screen didn't sense touch very well."

Cons: "the 2 stewardesses disappeared as soon as the flight was in the air. i upgraded to business class in what was a huge waste of money. the fact that they do not make alcohol available in business class is pure laziness, and these people are loving it. keep in mind that you can have water juice and pop. i was given the water i asked for after take off, and then she promptly disappeared for the entire 3 hours. she only returned when i pushed the call button. not good."

Pros: "The crew was awesome and boarding was quick"

Pros: "Crew was very accommodating but all three of us passengers were very close together, Thank goodness we were all considerate of the other."
Cons: ", Thank goodness we were all considerate of the other.Just need a little more elbow room for a comfortable flight."

Cons: "That particular plane seemed old and interior worn."

Cons: "Delay of 1 h at Philadelphia to Syracuse !!"

Cons: "INTERNET is difficult to figure out in these AA flights"

Pros: "We finally got here."
Cons: "Communication about the delay , which gate we were leaving from, having an entertainment system that worked (they said I could use my device with the app downloaded, but it did not work, I kept getting an error)."

Pros: "Not much crew stayed in back almost the whole 6 1/2 hr flight and seemed not to friendly"
Cons: "It would have been better if they had departed when they said they were going to after a delay. Flight was delayed first 1 hr then two more hours. The airline finally posted that it would depart a 4 PM and we didn't even start boarding until 5PM. Then they tried to rush us on so that everyone was standing on the HOT jetway for 10 min waiting to get on the plane. Plane didn't take off til 5:35 PM. Over all on this trip I had three flights that were delayed. I'll think twice before taking American Air again."

Pros: "Crew was great."
Cons: "Airplane didn't have any AC and was very old and dirty."

Cons: "We stay stuck in PVR"

Cons: "Everything was fine, crew was great, but the wifi entertainment system is a joke. Its nice to allow passengers to connect and watch movies or shows, however, when trying to watch a movie it constantly buffers. More buffering then watching, to the point of just stopping and skipping it all together."

Cons: "It ridiculous how small the seats and aisles are. It not fun flying any more"

Cons: "you didn't respond and we were unable to take the flight."

Cons: "I haven’t had such a terrible experience with another airline before. Missing out on dinner reservations. Wasting 12+ hours in airports. Spending more money at the food court than ever desired."

Pros: "Super old plane. No entertainment except for old screens from the ceiling every six rows or so."

Pros: "Easy boarding, flight on time, friendly creew"
Cons: "old plane with seat not confortable for a 3h flight"

Cons: "i wasnt able to select a seat when I checked in. they couldn't give me a better seat before bording and the fact that Im the one approaching then to have a seat selection, no one called my name."

Cons: "Entertainment is becoming too complicated for us old heads. Food, I still resent having to pay for something that is ed to be included in my fare."

Pros: "Quick flight. Took longer boarding than air time!"

Pros: "Must wider seats on this aircraft"
Cons: "Inflight monitor broken"

Cons: "Seats were very uncomfortable and that must have been the decision of the airline. We landed early and taxied and waited for a long time, more than 30 min until we actually pulled up at gate, also the airlines fault."

Pros: "Friendly staff and helpful"
Cons: "Did not fly out of Ontario, I was being led to fly out of LAX since there was a delay. Ended up flying out of John Wayne Airport."

Pros: "great"

Cons: "On time"

Pros: "Same size and capacity flight, my instrument was not an issue."
Cons: "For the love of god American Airlines you can’t have one person threaten to arrest you for trying to carry a guitar onboard and then someone else on a flight two hours later personally assist you in packing the same guitar into an overhead."

Pros: "The flight was on time. It was smooth and we had absolutely no problems"

Pros: "Good space in premium"
Cons: "Female cabin crew were aggressive, discourteous and frankly rude to the passengers when they had to verbally communicate. I hear this so often with American cabin crew. When I started to experience this I became aware of the same trend in regard communications with other passengers. Very unattractive."

Cons: "The airline decided to randomize seating so boarding was an absolute mess, with families switching seats, understandably. Flight attendants didn’t help at all or try to de-escalate the issues. The bathrooms were dirty and unkept which is unacceptable for long flights."

Pros: "I like the in-flight attendants as they are courteous even though it was late night flight. I cannot complain at all."
Cons: "Gate agent refused to try to put my 9-year-old son to sit next to me. She said "It's full flight" right out of the bat. Well, even if that's the fact of the matter, at least, be kind in responding to customer's inquiry. My son was seated across the isle, same row, but in reality the row was not even straight. And as a little boy, he cannot sleep straight and he has to lean to a stranger's shoulder? Thankfully I got a nice gent who should have sat next to him who were so kind to exchange seat with me. It's all in the attitude.... hopefully my attitude is not as bad :-) But maybe the gate agent was so tired for it was the last flight from ONT, at 1 AM. Bless her heart! Thank you though for your help to get the plane leave on time.!"

Pros: "We arrived safely."
Cons: "I don’t like having to pay for luggage or upgraded seats, WiFi. All money makers. Wish every airline could be like southwest."

Pros: "The staff at Ontario International was very helpful."
Cons: "No real complaint of the flight or staff. Next time I will upgrade my seating."

Pros: "Crew was friendly- organized everything well as far as getting everyone seated quickly and handing out refreshments"
Cons: "Very little leg room for anyone over five feet six inches! Happy to be 5’2” for a change!"

Pros: "Everyone was courteous and professional"

Pros: "The flight was what one would expect from a domestic airline. They did provide free movies/tv which was nice. It was one time to leave and on time to arrive."

Pros: "Brand new plane, very quick boarding, on time departure, great pilots"
Cons: "Earbuds super cheap couldn’t hear anything they re sponsored by Avis rent a car Crew. Just not caring on our needs. And I was in economy plus and paid twice the price. Will switch back to Air France next time"

Cons: "Everything was great"

Pros: "Nice and clean and seats were comfy"
Cons: "No outlet to charge devices"

Pros: "We got upgraded...Happy New Year to us!!! Service was excellent...landing was one of the smoothest we have ever had! Nice quiet flight with not too many people on board! I will use American Airlines again!"

Pros: "nice people taking care of us during the flight"
Cons: "in Miami, had to change gate 2 times, from D38 to E9,than to D7."

Cons: "It was advertised that one can see entertainment through WIFi, but from my iPad, i can't connect to this WiFi. I tried several times until I just gave up."

Pros: "Quick short flight efficient, got from A to B for the same comfort for the price I paid so I’m happy"

Pros: "The flight attendants were very nice and helpful and the flight was smooth as expected."
Cons: "Nothing the airlines caused. I would however like to know if the plane will have screens and plugs on the plane before hand. Our flight coming had it and our flight home didn't and my phone was dead :-("

Cons: "The plane never cooled off for the entire flight"

Pros: "Everything was on time!"

Pros: "Everything was great to me"
Cons: "The flight was packed"

Pros: "Nothing"
Cons: "Delayed 1 hour because crew announced there was a discrepancy between # passengers boarding central records. Flight crew didn't do anything to comfort passengers during this. Captain made one announcement about turbulence once at the beginning but nothing else for 1/2 hour or longer long turbulence period. Crew took away tray without asking. Ran out of water. Doors did not open for quite awhile after docking but crew said nothing. Seats so small one had to keep elbows glued to body to eat without touching neighbors. Felt like cattle being driven to slaughter. Min"

Pros: "Meh"
Cons: "The seemingly endless number of priority boarding groups announced in a garble no one can hear. The confused and I'll prepared crew (both to and from my destination); crew argued in front of the passengers over trivial stuff, and seemed to make the process of boarding more difficult. I was bumped over 5 times, by attendants without either a warning they were coming nor an apology after."

Pros: "The plane was new on the interior and comfortable."

Pros: "The seats were very comfortable"
Cons: "Just wish the bag checked staff would've been more polite"

Pros: "Entertainment only"
Cons: "Cancelled flight and inconvenience was miserable. Unacceptable service from American Airlines, and consistent with others have experienced as well. Will not travel with AA again."

Pros: "The entertainment options were good and the fight crew was friendly and helpful."
Cons: "The delays and lack of information in the boarding process are unacceptable - this occurred on my trip from Montreal to Paris as we as the return trip. Passengers feel like cattle being herded."

Cons: "No one told us the only inflight entertainment option was streaming via their app, until we were seated on the aircraft with no access to wifi."

Pros: "Prompt arrival"

Pros: "The agent at check-in was very friendly and helpful."
Cons: "Flight was delayed, so missed connection. As it turns out, Air Canada was aware all along that we would miss our connection; however, they still had us board. The gate agent should have been conscientious and informed us that the delay was ongoing with our flight being number 22+ on the tarmac to take off, thus guaranteeing our missed connection. They should have rebooked us on another flight from our original destination vs rebooking us upon arrival in Montreal to miss further connecting flights. Very disappointed!!!!! Based on this experience alone, never again will I or my family travel Air Canada."

Cons: "DELAYED FLIGHT DIDN'T HOLD MY CONNECTION - MISSED BY JUST 15 MIN SEATS NOT COMFORTABLE - PREMIUM ECONOMY NOT WORTH THE EXTRA COST"

Cons: "Arrived in Montreal six hours late"

Cons: "With basically all my flights on Air Canada, there were significant delays. The delays on this flight caused me to almost miss my connection. I had to run full speed to make it to the next flight, and the attendants on this flight were very terse announcing as we were landing "Do not ask us about your connections; we have no information. Do not ask us about your luggage; we have no information" With other airlines in the past, if I have had a flight delayed by an hour, the attendants have announced where I should be headed for my connection, or have called ahead to the connecting flight (if within the same airline" and asked them to wait for us. I didn't feel that AC did anything to help make up for the fact that my flights were so late. Almost ally other AC flights on this trip we're also delayed."

Pros: "Friendly folks"
Cons: "My flight was first delayed, then cancelled, and there wasn't even bad weather at either airport. I still don't know why the flight was cancelled. My alternate flight had to be from a different airport and that flight was also delayed. I went from a non-stop flight to a flight with a layover... a 7 hour layover. Was not fun sleeping at the airport. On top of that, I had paid to select my seat and it wasn't honored on the flight back. Somehow I was unassigned because of the flight change during departure but I was still charged."

Pros: "Overall good flight in terms of smoothness, safety, timeliness, etc."
Cons: "No enrertsinment without downloading google app for phone or pad. Short announcement about this made shortly before flight and we did not react in time to do it. Thought I would read but overhead lights broken; complained three times before fixed."

Cons: "Our direct flight to Montreal was canceled due to mechanical issues. The rebooking process was discombobulating and we ended up arriving at our destination after the rerouting that was stressful and ensured that we lost a whole day of our vacation time. Our flight back the entertainment system in our seats did not function."

Pros: "Decent movies."
Cons: "I separated from my 2 daughters and husband because they did not allow me to pick seats or check in online. I was stuck in the seat immediately in front of the stinky bathroom in a seat that didn't recline, had no hdmi charging port and was pretty much continuously crowded by bathroom-goers. In fact, so many bathroom goers grabbed the seat in front of me that they touched my movie screen about 7-8 times, causing the menu to pop up and interrupt the movie. Otherwise, the food was gross and one of the flight attendants was very grumpy."

Pros: "The flight arrived about 30 minutes early. Also, it left a little late. For me, the less time on the plane the better."
Cons: "Guy next to wanted to charge phone a laptop in USB port in front of me b/c his was our of order. This worked out OK but in a small space it's not so good. He was bare foot too. Take of your shoes but wear socks, please....Plane was not hot, actual a litter chilly."

Pros: "plenty of room, media player, wifi, nice selection of snacks and meals."

Pros: "Quick professional services"

Pros: "The counter employees as well as the people who helped me navigate the airport ( I am disabled) were very helpful."
Cons: "The crew on the plane seemed very overburdened and somewhat annoyed by passengers. Maybe they were having a challenging day. I don't know. I didn't even want to ask for a glass of water."

Pros: "Service food on time flights"
Cons: "No movie for such a long flight."

Pros: "Seats"

Pros: "clean, polite, helpful crew"
Cons: "obtaining boarding passess via smartphone"

Cons: "Our flight was over an hour late getting to the airport in Morocco and when there we were left standing in the jetway after scanning our tickets for a good 30 minutes. The flight was so delayed, many of us missed our connecting flights and had to be issued later flights. I was originally booked to fly out the next day, which would NOT have worked out but was booked instead for 5 hours later. I stood downstairs for 2 hours trying to find my baggages, however, they never came where they were supposed to come out and I received 3 different answers on where they were. "They're at carousel 5," "you don't have to get them they will be checked to your final destination," no they're at carousel 3, so you can grab quickly and recheck upstairs." My bag wasn't at any of these places. I finally found a nice air Canada agent who took the time out of his day to actually go to the back and check on my bag to which he returned 10 minutes later with it. It was just "circling around back there" with nowhere to go. Had I not been persistent, my bag would not have made it to my final destination. I wish the story ended there but it does not. After a 5 hour wait, I sat at my gate which continued to say "American Airlines" I asked the gate if United Airlines flight was still leaving from there she just stated she "had no idea" frustrated, with no gate to go to with a flight leaving in 1 hour nobody seemed to know where our new flight was boarding. After 3 gate changes we were finally able to board our flight to D.C. I am sorely disappointment in both Air Canada and the YUL system. This would be my second time flying this way and both times I have had issues. It's too bad. I do not plan on doing so again."

Pros: "I liked the friendly crew members"
Cons: "1. Could not reserve seat on the return flight and still got charged for it. 2. My seat did not have the new outlet for phone jack and USB charger. I had to use old headset outlet on the arm-rest which did not work. 3. Planes delayed on both directions."

Pros: "Didn't take it"
Cons: "Customer service in Toronto did not know how to get us to Venice before our cruise departed. Wild goose chase sent us on a one hour, $26 train ride to Milan central station where we learned the train air canada told us to take didn't exist. Suddenly forced to take a 2.5 hr, $500 cab ride to Venice."

Pros: "It is one step back from Air Canada Rouge but it is the best airline flying to LA"
Cons: "I missed the blankets and pillows"

Pros: "Air Canada Rouge business class is excellent I would recommend it to anyone"
Cons: "There was nothing that I did not like"

Pros: "Comfort, decent entertainment selection, crew was pleasant and professional, boarding was smooth"
Cons: "Food = bland mystery meat entree."

Pros: "We had to sleep on floor of Toronto airport all night"
Cons: "Bumped from flight no compensation"

Pros: "Good legroom and entertainment options, on time. Enjoyable overall."
Cons: "Food showed British heritage -- stodgy, boring, overcooked. The bathrooms were dirty and out of supplies after a while."

Pros: "I hated both my trips with Air Canada. I payed extra for a better seat and the one I got was dirty. The tv was NOT working. On top of the 5 hours delay, I hated all the experience. The attendants messages is never clear and focus. It's like Air Canada is employing teenagers with NO work etics or professionalism. I am a frequent flyer and will NEVER flew with Air Canada again. The cheap ticket is not worth the cheap aircraft and cheap service I received."

Pros: "They arrived on time. Not much else."
Cons: "Over 4 hour flight. No food (not even pretzels). A few old movies. Flight delay with no communication. I only noticed when I was checking in at the kiosk and noticed that my one hour layover was now a 5 minute layover. Rebooked. When I arrived at destination, no notice that next flight was delayed, even though it was over 3 hours late. Thought I only had 1 hour to go through US immigrations and customs. Ran to the other end of the airport to be on time. Aircraft wasn't even at airport and flight was over 3 hours late. They couldn't have posted that so we didn't have to run across the airport? Changed gates, but no announcement. One other flyer was looking at the board and called out to the group waiting that there was a gate change. Left Vancouver at 8:00 am, arrived in Boston at 1:30 am. Won't fly with Air Canada again."

Cons: "Horrible to fly Air Canada"

Cons: "There was absolutely nothing that I found to complain about"

Pros: "comfortable clean and overall a pleasant experience"

Pros: "The seats were spacious and the electric/USB outlets made all the difference! By the end of the flight, my phone was charged and I was ready to see Montreal!"
Cons: "Paying for seats."

Cons: "Screaming kids right behind me for 3 1/2 of the 4 hour flight"

Cons: "Didn't accept my carry-on that was always accepted before with all airlines.At least from Mtl to Quebec,i would have been able to do it.I will reconsider travelling with A C ???"

Cons: "What a mess. Every DELTA flight I have been on in recent months has had terrible delay issues - I'm cancelling my credit card."

Cons: "I was dozing when the attendant came around- as a result went through whole flight without water!"

Cons: "Everything costs extra: picking seats, pillows, blankets, no Economy Plus for Star Alliance elites, any food, etc."

Cons: "It was 3am and my boarding pass wasn't bright enough on my phone. Instead of politely asking me to go print out my boarding pass at the check in stations, she yelled at me and told me I was holding up the line"

Pros: "Loved the plane."
Cons: "I tried to get business class it was full. In general, I don't spend for business class because AC BC is so poor (horrible food, iffy seats, broken entertainment systems). But this plane was different, unfortunately I couldn't get on."

Pros: "The flight attendants were very professional and nice."
Cons: "The flight took off late and did not make up the lost time during the flight."

Pros: "Arrived early at check in counter and was offered to catch an earlier flight"
Cons: "Was not able to use a toddler booster for my daughter"

Pros: "The ice cream and the one woman in customer service that actually seemed to care."
Cons: "My husband and I were flying to Italy, on the first leg of our flight neither of our screens worked so we had six hours with no entertainment. They gave us a card to make it up to us but (wisely) don't tell you what it is for. It turned out to be for 10% off your next flight if you book it through their website within a year. Useless. On our return flight we were delayed on the tarmac for over an hour with no air conditioning, they originally said they were waiting for a signature but then said that there was something wrong with the engines that help us take off, then the cabin filled with a fuel smell, then they said they had brought the wrong item for the repair and we were waiting for the correct one. When we finally took off my husband's screen didn't work yet again and this was a 9 hour flight. The flight attendant said that some of the screens hadn't worked for a while ( probably cheaper to hand out useless discounts than to fix them.). We received another 10% off card, which we cannot combine or transfer, again useless. We missed our connection because of the delay, they booked us on another flight but because they didn't tell us that we had to pick up our luggage or where (it was on a different carousel than the rest of the luggage from our flight) and that we had to go through customs we (and many others) missed that flight too. We finally got a flight out the next morning and they put us up at a hotel. We both had to miss another day of work and it was quite an ordeal. My husband's screen worked for almost all of that last flight before it seized up. We didn't bother to report it that time since another 10% off coupon wasn't going to do us any good. Overall it is concerning that Air Canada doesn't seem to be maintaining their planes in optimal condition and that their idea of compensation involves them making even more money from me. Never again."

Pros: "The flight was on time, boarding was well-organized, the service was friendly and helpful."
Cons: "The line to the washroom was quite long - there were only two washrooms at the back of the plane."

Pros: "Everything was ok ! I love late departures"
Cons: "From Cancun to Mtl, we had to wait 2 hours before boarding!"

Cons: "The crew"

Pros: "I liked the flight when I got off the plane because it was over"
Cons: "The whole experience was horrible, the landing, the food, the noise, the unconfortable seats, the plane was too hot and especially the bad landing...never again...it was the worst trip I have ever taken and I fly 2 times a year."

Pros: "Entertainment selection was excellent and the liquor selection exceeded expectation. Very smooth flight."
Cons: "Didn't give us US customs forms, had to ask, only got one, had to ask again, and then rushed to fill them out and THEN customs threw them out and we had to do everything on the computer. I would think that the crew would be familiar with this process at their home airport and not waste our time. Also, no one could tell us if we would have to go through security again and if we could buy any liquids in Paris duty free to bring home due to the liquid rule and going through security. Just a wildly uninformed airline (asked our crew and other AC officials) they couldn't answer a few simple questions."

Pros: "Prompt, courteous staff, clean ."
Cons: "Don't love having to watch movie on a phone. Would prefer screens on plane."

Cons: "I did not like that I could not use my own ear phones to watch movies during my flight. Also they do not offer visa debit on flights so I was not able to purchase ear phones. Which made the 4.5 hour flight long. And my head rest was very uncomfortable, I am short and it pushed my head forward too much which hurt my neck. It would be nice to have the option to remove it. Also on a 4.5 hour flight they should offer free little snack like peanuts or a fruit cup."

Pros: "The staff was very pleasant and accommodating."

Cons: "I ran to the gate from my previous flight, but it turned out this flight had been delayed. The flight boards and United app didn't show that though."

Pros: "I was asleep."
Cons: "The seats were very cramped."

Cons: "I was flying with Air Canada. The UI for watching movies was not good, it had a hard time to respond to the inputs. It was also hard to move the videos forward to the part I needed. Plus, the audio wasn't working well with my own earphones."

Pros: "Getting home."
Cons: "It was an older airplane. For a long flight from Montreal to San Francisco, a plane with more room would be more humane. People were lined up for the bathrooms most of the trip since could not use the small first class bathroom. If one wanted a meal, it was one you had to pay for. Broken monitor"

Pros: "The entertainment is amazing. Did not expect it. Just download the UA app and it is connected to your device"
Cons: "Not their fault but we were detailed total of 3 hrs from Ontario to SFO and SFO to HNL due to aie traffiv in SFO. They handled it well"

Pros: "Have seatback TV and arrived on-time"
Cons: "Sitting in window seat"

Pros: "There is nothing to like about Air Canada's Rouge service. Their sardine seat layouts are amongst the worst in the industry."
Cons: "1. Seat comfort. 2. On-time departure. 3. Boarding Procedures. 4. Pre-boarding announcements."

Pros: "The crew was so polite and helpful."
Cons: "Nothing could be improved for this short flight!"

Pros: "Crew & flight attendants very courteous and apologetic; complisnacks while waiting for delayed flight"
Cons: "Flight delay!!"

Pros: "Fast boarding in good order"

Cons: "flight was delayed. tug car didn’t work"

Pros: "Clean plane, comfy seats and friendly staff"
Cons: "All was good. Didn’t have any problems."

Pros: "Flight on time"
Cons: "Travel plans will be impacted due to lost luggage"

Pros: "Nice attendant, food OK, no delay."
Cons: "Internet costs"

Pros: "Easy, convenient and everyone is nice and accommodating. We always get to SFO under an hour"

Pros: "Crew was helpful and friendly."
Cons: "Flight got delayed and almost missed my connection."

Pros: "The fact that I got fully refunded, even though I still lost out on $500+."
Cons: "My flight was supposed to leave at 12, and all that Kept happening was me receiving text messages about delays pushing my departure time back to 5:35pm. I missed a big birthday event I was throwing for my class that I teach, lost out on money spent for the event and missed out on all the memories made that night. I never got to leave, ended up cancelling my flight. What a waste of time. Seems to always happen when I fly through United."

Pros: "i was rebooked and am still on my way"
Cons: "i was delayed in ONT, making my flight an almost 24 hour trip from vONT to my destination. not fun had to reschedule car rental. luckily, they did not charge extra"

Pros: "Nothing"
Cons: "Air Canada flight from Ontario to SFO was operated by United. Our flight was delayed by 2 hours and we ended up missing our connection. The customer service on the phone from both Air Canada and United would not take responsibility and continued to advise to call the other company to reschedule the flight. Not only did we miss our connection but our checked bag was rerouted onto another flight with no formal notification."

Pros: "on time"

Pros: "Que acomoden a las parejas juntas."
Cons: "Asiento incomodo"

Pros: "I liked nothing about my flights."
Cons: "I hated that my first flight was delayed a whole day and I had to fly out of a different airport to get to eugene. To add coming home I tried to upgrade my flight to Ontario to an earlier time and they refused to do so and said it would cost $75. I felt the least the airline could do was let me fly home an hour earlier since they delayed my flight a whole day but that didn't happen."

Cons: "The plane smelled like sewage and it was extremely cold inside the plane for the entire duration of the flight."

Cons: "2 hour delay"

Pros: "Upon arrival at my gate departing to Durham with a 2 year old handful. I was excited to hear the attendant call for travelers with small children to board first. The thought of boarding at the same time as everyone else was giving me anxiety."
Cons: "Once I shuffled through tons disgruntled travelers because of my "child privilege" the attendant rolled her eyes and took a deep breath at the amount of time it took me to get to my ticket. Mind you, it makes sense I would have it somewhere convenient, but like I said single traveller, 2 year old handful. She scanned my ticket and flogged her hair in the air telling me take my stuff to the front of the plane. While the other attendant tagged all my items."

Pros: "Nice crew"
Cons: "Long wait for the flight delay, Long wait for take off, long wait pulling into gate. No outlet for rechargING phone, same on flight."

Cons: "Very Rude while talking to me at the airport. Was not happy to assist me and other passengers even though it was the air-line mistake for cancelling the flight and delaying the flight. Will never fly with this airline ever again."

Pros: "I didn't fly.I bought the ticket for my son. He had no complaints. You should ask in your questionnaire if the booked flight was for self or someone else."

Pros: "What did I like like that the pilot let us know what was going on on every moment and the stewardess was very friendly"
Cons: "Seats very uncomfortable last flight 30 minute flight took an hour if not more and not knowing what gate my next flight is until I get there"

Pros: "This was a short flight. The only issue was the boarding. Took a while for me to get to my seat."

Cons: "The plane landed to San Francisco earlier than scheduled, but we could not get off the plane due to the gate not available. We were stuck on plane for about half an hour and I really worried about making my connection. I hope such arrangements are conducted more smoothly."

Pros: "nothing totally a rip off"
Cons: "I paid 125 for my hockey bag. Flight was delayed but no email or anything. Changing my flight was miserable staff so rude and people on phones can barely speak"

Cons: "TSA took forever, other than that. My flight boards at 0540 and I got there exactly at 0545. The plane already made its way to the runway and wouldn't wait an extra 10 mins for passengers to enter."

Pros: "Three hours late. No in flight snack since the weather was too bad for the flight attendant to bring a cart down the aisles. Pretty old plane, so kind of uncomfortable. But the staff was really nice and friendly for it being the holiday season, so they get all two stars."

Pros: "2.5 HR layover lost bag"

Cons: "Flight delay"

Pros: "Fast service!"

Pros: "Timely...and pilots updates of flight time"
Cons: "3 stewardess slow service"

Pros: "Great staff."
Cons: "A crying baby that say behind me."

Pros: "Snack delicious"

Pros: "Plane was delayed over 2 & 1/2 hours for no apparent reason"

Pros: "It was on time And very convenient"

Pros: "We were not given seats together..."
Cons: "Busy and not well managed and we bought seats well in advance"

Cons: "The plane was tiny and the seats were tiny. Could not carry on a bag and it took a long time to get the bag back from having been gate checked."

Cons: "Received several text messages announcing further delays in flight..."

Pros: "On time"

Cons: "Ticket agents did not communicate with passengers on why there was a delay and weren't willing to help passengers find alternate routes to their destination."

Pros: "Quick flight and also very nice people working. They took good care of us for our short time with them."
Cons: "I have no complaints about this flight. It went very smooth."

Cons: "First my flight was cancelled. Then when they finally gave me a flight to San Francisco for my connecting flight they said that flight to seattle was delayed. Delayed to me is up to an hour. I waited for 3 hours past my scheduled take off time until my flight fonnaly took off. I have flown a lot in my life and this was by far the worst experience I've ever had on an airplane."

Cons: "It never took off! They did not reschedule, they were not attentive, it was absolutely terrible."

Read more about Delta
COVID-19 information

Safety measures for airlines flying from Ontario to Montreal Pierre Elliott Trudeau Intl

Airlines flying from Ontario to Montreal Pierre Elliott Trudeau Intl have enacted additional safety measures and adjusted policies to better accommodate travellers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Ontario to Montreal Pierre Elliott Trudeau Intl

Mandatory masks

Masks required on board, masks provided on flights from Ontario to Montreal Pierre Elliott Trudeau Intl

Social distancing seating

Middle seats unavailable to book on flights from Ontario to Montreal Pierre Elliott Trudeau Intl

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Ontario to Montreal Pierre Elliott Trudeau Intl

Book cheap flights from Ontario to Montreal Trudeau Airport

Recent round-trip flight deals

30/4
Fri.
1 stop
Air Canada
7h 26m
ONT - YUL
2/5
Sun.
1 stop
Air Canada
14h 20m
YUL - ONT
30/4
Fri.
1 stop
United Airlines
7h 26m
ONT - YUL
2/5
Sun.
2 stops
United Airlines
12h 00m
YUL - ONT
29/4
Thu.
1 stop
American Airlines
13h 47m
ONT - YUL
2/5
Sun.
1 stop
American Airlines
8h 31m
YUL - ONT

Recent one-way flight deals

17/2
Wed.
2 stops
United Airlines
17h 40m
ONT - YUL
11/2
Thu.
2 stops
American Airlines
17h 35m
ONT - YUL
11/2
Thu.
3 stops
Multiple Airlines
29h 21m
ONT - YUL
11/2
Thu.
1 stop
Delta
10h 33m
ONT - YUL
-
1
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First