YUL - CHI

C$ 234 Find Cheap Flights from Montreal to Chicago – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Montreal to Chicago departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest round-trip
C$ 375
Typical prices: C$ 389-C$ 444
Porter Airlines
Thu 20/8Tue 25/8
YUL - MDW • 1 stop
Cheapest direct flights
C$ 390
Typical prices: C$ 410-C$ 609
Air Canada
Thu 10/9Mon 14/9
YUL - ORD • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
United Economy Plus adds up to 15 cm more legroom than standard economy.
Air Canada Preferred Economy offers up to 10 cm extra legroom on this route.
Expert advice
Expert advice
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Top airlines
Cheapest • from C$ 375 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Direct flights
You can fly direct with Air Canada, American Airlines, and United Airlines. Average duration is 2h 38m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest
Most popular
Insights
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Top layover airports
Cheapest • Avg C$ 407 (round-trip)
Shortest trip • 4h 03m (one-way)
Insights
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When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 58% compared to booking last minute.
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When to travel
Cheapest • 17% price drop
Most popular
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Flight Deals

Cheap Flights from Montreal to Chicago (YUL-CHI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to Chicago that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Montreal to Chicago

Thu, 20 Aug - Tue, 25 Aug
Porter Airlines Logo
6:30 a.m. - 9:45 a.m.
YUL
-
MDW
4h 15m
1 stop
Porter Airlines Logo
10:25 a.m. - 6:10 p.m.
MDW
-
YUL
6h 45m
1 stop
C$ 375Porter Airlines
Wed, 2 Sep - Tue, 8 Sep
Porter Airlines Logo
10:35 a.m. - 2:35 p.m.
YUL
-
MDW
5h 00m
1 stop
Porter Airlines Logo
11:45 a.m. - 6:12 p.m.
MDW
-
YUL
5h 27m
1 stop
C$ 379Porter Airlines
Tue, 8 Sep - Tue, 15 Sep
Air Canada Logo
8:40 a.m. - 10:15 a.m.
YUL
-
ORD
2h 35mdirect
Air Canada Logo
7:25 a.m. - 1:45 p.m.
ORD
-
YUL
5h 20m
1 stop
C$ 380Air Canada
Tue, 8 Sep - Tue, 15 Sep
Air Canada Logo
4:30 p.m. - 8:41 p.m.
YUL
-
ORD
5h 11m
1 stop
Air Canada Logo
7:25 a.m. - 1:45 p.m.
ORD
-
YUL
5h 20m
1 stop
C$ 387Air Canada
Wed, 30 Sep - Sat, 3 Oct
Delta Logo
6:00 a.m. - 9:07 a.m.
YUL
-
MDW
4h 07m
1 stop
Delta Logo
6:40 p.m. - 11:27 p.m.
MDW
-
YUL
3h 47m
1 stop
C$ 395Delta
Wed, 30 Sep - Wed, 7 Oct
Delta Logo
6:00 a.m. - 9:07 a.m.
YUL
-
MDW
4h 07m
1 stop
Delta Logo
1:27 p.m. - 11:25 p.m.
MDW
-
YUL
8h 58m
1 stop
C$ 395Delta
Tue, 18 Aug - Wed, 26 Aug
United Airlines Logo
9:45 a.m. - 11:21 a.m.
YUL
-
ORD
2h 36mdirect
United Airlines Logo
2:01 p.m. - 5:30 p.m.
ORD
-
YUL
2h 29mdirect
C$ 403United Airlines
Tue, 18 Aug - Tue, 25 Aug
United Airlines Logo
9:45 a.m. - 11:21 a.m.
YUL
-
ORD
2h 36mdirect
United Airlines Logo
2:01 p.m. - 5:30 p.m.
ORD
-
YUL
2h 29mdirect
C$ 403United Airlines
Tue, 25 Aug - Wed, 26 Aug
American Airlines Logo
5:34 p.m. - 7:19 p.m.
YUL
-
ORD
2h 45mdirect
American Airlines Logo
5:00 a.m. - 12:27 p.m.
ORD
-
YUL
6h 27m
1 stop
C$ 430American Airlines
Fri, 4 Sep - Sun, 6 Sep
American Airlines Logo
5:34 p.m. - 7:19 p.m.
YUL
-
ORD
2h 45mdirect
American Airlines Logo
8:19 a.m. - 3:29 p.m.
ORD
-
YUL
6h 10m
1 stop
C$ 437American Airlines
Booking Insights

KAYAK's insights & trends for Montreal to Chicago flights

Get data-powered insights and trends into flights from Montreal to Chicago to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago departing in August.

Flight prices are below average for this route right now.

Flights to Chicago from Montreal Pierre Elliott Trudeau Intl Airport usually cost between C$ 444 and C$ 578 in August.
The lowest price found in the past 5 days was C$ 375 on Porter Airlines (20 Aug–25 Aug).

What is the cheapest Montreal Pierre Elliott Trudeau Intl Airport to Chicago flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago costs C$ 393 on the route between Montreal Pierre Elliott Trudeau Intl Airport (YUL) and Chicago O'Hare Intl Airport (ORD). It is also the most popular route.

What’s the cheapest day of the week to fly from Montreal to Chicago?

The average price of all round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Montreal to Chicago, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Chicago, Tuesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago is April, where tickets cost C$ 387 (return) on average. On the other hand, the most expensive months are October and July, where the average cost of round-trip tickets is C$ 541 and C$ 533 respectively.

Can I save money by flying with a layover from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of C$ 515, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago, you should book around 5 weeks before departure, which saves you about 58% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Expert advice

Expert advice for your flight from Montreal to Chicago

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on ANA

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Stefanie Waldek

Stefanie Waldek

Expert on Air Canada, United Airlines and ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Mark Stachiew

Mark Stachiew

Expert on YUL

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Good to know

Low season

January

Cheapest flight

C$ 234
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (5% more expensive on average)
Flight from Montreal to Chicago O'Hare Airport

When to book flights from Montreal to Chicago

Are your dates flexible? Find out the best times to travel from Montreal to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Montreal to Chicago: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Montreal to Chicago 
Steven AnthonyFlew with United Airlines
YUL
-
ORD
Aug 2024
Don't take the 6am flight. Airport security and customs only open at 430am. So if you show up the recommended 3 hours before, you're waiting in line for nothing
Verified travelerFlew with United Airlines
YUL
-
ORD
Apr 2024
Come prepared with your own entertainment as the flight did not offer in flight entertainment

FAQs for booking Montreal to Chicago flights

  • Are there public transportation options to get from Chicago O'Hare International Airport to Downtown Chicago?

    The Chicago Transit Authority offers their Blue Line train service to get from the airport to Downtown Chicago. The train runs 24h a day and includes more frequent service during morning and evening rush-hour periods. Each terminal building has a pedestrian tunnel that connects to the train station at the airport with plenty of signage marking the location of the tunnel and the station.

  • Are there direct flights between Montreal-Trudeau International Airport (YMQ) and Chicago O’Hare International Airport (ORD)?

    While there are currently no nonstop flights between these two cities, Air Canada offers one-stop service with a layover in Toronto International Airport, and United Airlines offers one-stop service with a layover in Newark International Airport.

  • Are there hotels near Chicago O'Hare International Airport (ORD)?

    If you’re looking to stay near the airport, the Hilton Chicago O'Hare Airport is right on the airport property, which allows you an easy walk to the terminal building before and after flights.

  • Is there public transportation available from the city center to Montreal-Trudeau International Airport (YMQ)?

    The bus 747 runs 24h a day, 365 days a year between the Montreal-Trudeau Airport and Downtown Montreal, on the corner of Berri and Sainte-Catherine. The travel time is around 45min and the fare to ride it is around C$ 10.

  • What is the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?

    In the last 5 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago was C$ 232 for a one-way ticket and C$ 375 for a round-trip.

  • Which airports will I be using when flying from Montreal to Chicago?

    On your way to Chicago, you’ll fly out from Montreal Pierre Elliott Trudeau Intl. You’ll be landing in one of Chicago’s 2 airports: Chicago Midway or Chicago O'Hare Intl.

  • Which airlines offer Wi-Fi service onboard planes from Montreal to Chicago?

    Air Canada, United Airlines, American Airlines, Porter Airlines, and Delta offer inflight Wi-Fi service on the Montreal to Chicago flight route.

  • Which aircraft models fly most regularly from Montreal to Chicago?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Montreal to Chicago flight route.

  • Which airline alliances offer flights from Montreal to Chicago?

    oneworld, and Star Alliance are the airline alliances operating flights between Montreal and Chicago, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Montreal to Chicago?

    There are direct flights from Montreal to Chicago on a daily basis.

  • Which is the best airline for flights from Montreal to Chicago, Porter Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Montreal to Chicago are Porter Airlines and United Airlines. With an average price for the route of C$ 394 and an overall rating of 8.0, Porter Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of C$ 495 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Montreal to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Montreal to Chicago.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Montreal is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Montreal to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to Montreal with another airline.

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

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from Montreal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 421 or less one-way and C$ 560 or less round-trip.
  • If you will be parking your car at Montreal-Trudeau International Airport (YMQ), there are several options to choose from. Several offsite economy lots charge around C$ 25 per day for parking and offer shuttle service to the airport. If it is the middle of winter and you want to keep your car out of the elements, there is indoor parking available at the airport for around C$ 40 per day.
  • If someone is picking you up at Chicago O'Hare International Airport (ORD), they can do so at the outermost curb at the lower level of the airport. There is no parking at any time in these locations and if drivers need to wait for you the best option for them is to wait in the cell phone lot. Drivers can wait in the cell phone lot free of charge.
  • If you’re traveling with little ones, Montreal-Trudeau International Airport offers several specialized services for families with children. This includes priority queues at security screening checkpoints, several play areas located throughout the airport for children, as well as nursing rooms that can be found in most restrooms.
  • Are you looking to rent a car at Chicago O'Hare International Airport? The airport offers all major rental car companies at their offsite Multi-Modal facility. There's a 24h shuttle available curbside from the lower level of the airport, just outside the baggage claim area.
  • If you want to pick up a quick bite to eat before your flight to Chicago O’Hare, the Montreal-Trudeau International Airport offers several options. These include the signature coffees of Java U, the bagel creations MTL Bagel, as well as the craft pizzas found at YUL Pizza.

Prefer to fly direct from Montreal to Chicago?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Montreal Pierre Elliott Trudeau Intl to Chicago.
Find which airlines fly direct from Montreal Pierre Elliott Trudeau Intl Airport to Chicago, which days they fly and book direct flights.

Direct departures

Montreal Pierre Elliott Trudeau Intl to Chicago

Monday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Tuesday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Wednesday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Thursday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Friday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Saturday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Sunday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

See more nonstop flights

Direct returns

Chicago to Montreal Pierre Elliott Trudeau Intl

Monday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Tuesday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Wednesday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Thursday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Friday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Saturday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

Sunday

Air Canada,American Airlines,United Airlines

Air Canada,American Airlines, +1 more

See more nonstop flights

Reviews of the top 4 airlines flying from Montreal to Chicago

 
See real verified KAYAK customer reviews for airlines flying from Montreal to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Montreal to Chicago? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Porter AirlinesOverall score based on 448 reviews
8.6Crew
8.2Boarding
7.5Food
8.0Comfort
6.9Entertainment
Airline reviews

Look, I understand that Kayak doesn't know I cancelled my flight on Porter. So I didn't actually fly yesterday. My main disappointment is with Porter ticket fare policies, and maybe you can pass this on to them: At my employer's request, I had booked a full fare ticket with no change fees since my trip to Toronto would likely be extended. Indeed, when I went to change my flight home to a later date, I was told the Fare Difference would cost an additional $550. So much for no change fees lol! While I had the agent on the line, I hopped over to Kayak, searched for new flights on the date in question, and saw a one-way ticket that got me home for only $355. So I got reimbursed about $450for the unused half of my roundtrip and bought a new ticket for $355. What good is a full fare / no change fee ticket if they screw you with "fare difference" BS. I'm still flying home on Porter Airlines but they just lost a hundred bucks with their stupid shenanigans.

4.0 OkayJeff, Jul 2026
YYZ - SFO
Read more Porter Airlines reviews

Look, I understand that Kayak doesn't know I cancelled my flight on Porter. So I didn't actually fly yesterday. My main disappointment is with Porter ticket fare policies, and maybe you can pass this on to them: At my employer's request, I had booked a full fare ticket with no change fees since my trip to Toronto would likely be extended. Indeed, when I went to change my flight home to a later date, I was told the Fare Difference would cost an additional $550. So much for no change fees lol! While I had the agent on the line, I hopped over to Kayak, searched for new flights on the date in question, and saw a one-way ticket that got me home for only $355. So I got reimbursed about $450for the unused half of my roundtrip and bought a new ticket for $355. What good is a full fare / no change fee ticket if they screw you with "fare difference" BS. I'm still flying home on Porter Airlines but they just lost a hundred bucks with their stupid shenanigans.

I flew with Porter yesterday and overall had a positive experience. The flight was delayed, but the airline did a good job keeping passengers informed with frequent updates throughout the process. My biggest challenge was actually in Terminal 3, where the speaker system wasn’t very clear. It was often difficult to hear the announcements, which made it harder to follow updates at the gate. On board, the experience improved significantly. The aircraft felt very new and well maintained, and the seats were surprisingly comfortable for a short-haul flight. One of the flight attendants seemed a little disengaged, but the other was excellent—friendly, professional, and a pleasure to interact with. Despite the delay, the comfortable aircraft, clear communication from Porter, and positive onboard service made for a good overall experience.

The Flight took off 2hrs late because there was no pilot showing up when the flight was ready to board.. Though the cabin crew was present and had prepared the plane, the FO turned around after 15 min and went away. A crew to fly the plane finally arrived over an hour later and we were able to board 1h30 min later than planned time... until everything was loaded, we left 2h late from the gate. This was a small plane, so don't expect any Entertainment... Wi-Fi access on board would work, but took an awful amount of time to figure out and get it work (I'm an IT person). Flying as VIPorter customer, I was expecting at least some warm meal, but everything served was just cold.. except the coffee maybe. Even in so-called VIPorter seats, space is cramped and trays are so tiny, you can barely setup your food. Flight caught up during the coast-to-coast crossing and was able to recoup about 45 min from the delay.. still arrived very late in Vancouver and had to wait a long time to get our registered bags. Let's see how the return flight will be in a few days..

It was okay. Had a thing with the front desk, she had me repack my suitcases to have them be under the weight restrictions, but then the other one was overweight, she argued with me about it when there were tons of people in line. Wasn’t great.

On my e-boarding pass it shows free wifi, yet the plane I was on didn’t have wifi. Please remove false advertising from your website and boarding passes

Organization and the adjusted times but the snacks could be of a bigger portion

Our flight was delayed by a bit. I appreciated that we were kept informed on why periodically. Boarding was fine. I overheard one flight attendant sounding very rude to a passenger who was not paying attention to the safety demonstration. The snacks were minimal as it was a short flight. There was no entertainment. Overall the flight was good back to LGA.

All good the seats a little tight and no I pad screen

Seemed like an old plane. Very noisy. The seat cushions were so old that the metal bracing of the seats were poking through. There was plenty of leg room though.

The only issue had when i mentioned about comfort was the man beside me was on the larger side and took about 1/3 of my seat where i was pressed against the wall/window of the plane for the trip.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

Very nice and clean plane. Transit time between flights was tight though

So far so good but food and entertainment are not available for this flight

HORRIBLE WITH THEIR WEBSITE!!! WORST WEBSITE IN THE WHOLE AIRLINE INDUSTRY

There was no room in overhead bin to place our luggage despite we had tree seats. It means a lot of people had more than 1 carry on bags. When I asked a crew member to help she said that it was not her responsibility.

The plane used to go to Chicago was a bit outdated and needed a refresh

The check-in and passport submission was complicated and repetitive, due to the poor communication between Air Canada and United. There should have been a single set of instructions and a single questionnaire that provided the data for both airlines.

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

Internet was not working for a bet . Hard to order food with our credit card because it was not in your system .

Booked economy through United - air canada treated it as standby and was almost refused boarding.

My seat had a worn out cushion, which made it a bit uncomfortable. Other than that, the flight was excellent.

Take this flight regularly. Every single week same thing. Departure delayed. Make up some time in the air. Land at ORD and then wait for gate in "L" concourse Terminal 3 for 30-40 min-which yields a very delayed final arrival. Plus I get to taxi around and see every runway and drive over the bridge (IFKYK) over the expressway 2-4 times in most cases. Change the sched of incoming plane/work with FAA to improve traffic flow at ORD/change the timing of these flights. Whatever it takes. But do better.

- flight was delayed several hours due to weather (understandable) - flight delayed further and we were told by attendants "we are not sure where the pilots are but they are on their way" as we have to find different pilots for the flight - announcements over the PA were somewhat unprofessional by the attendants, seems they need more training and were not reading off the script. They showed their young age and immaturity in their communications with the passengers. They were not clear and lacked professional communication language. - going from a hub to hub we were also parked at the tarmac at ohare for an additional hour and kept being told "few more minutes". Please just let the passengers know the real wait time instead of hiding the truth. We understand there is traffic and weather delays, but we just want transparency. There are several logistics of our lives that revolve around what the attendants and pilots are sharing with us but they are not being transparant.

This may have been the hottest cabin temperatures I have experienced on any flight prior to take off lasting for approximately 30 minutes. I am not typically one to complain but I was genuinely worried about the health of several passengers on the flight due to the extreme temperatures including a small toddler.

The flight was on time and crew were nice, seats were tight and there was entertainment available

Worst flight ever. I was suppose to have a 3 1/2 hour layover in Chicago but got to the gate 4 minutes before boarding.

A cookie and a soda, packed like sardines, will never be a positive experience. Also, boarded a 5:30 flight at 7:45pm

The crew was very helpful and the aircraft was clean. More attentiveness to us in business class.

lounge was the highlight - seats weren't that comfortable - it was a full flight but no complaints

Incompetent crew at the boarding counter. Never flying AA again.

After 3 hours of delays, they ended up cancelling my flight. And although I could purchase one-way tickets to get to my destination, they would not offer me these flights as compensation for the cancelled flight, and I didn't end up making it home until 13 hours after I was originally supposed to arrive. It made for an extremely strenuous end to an otherwise good trip.

Flight was delayed, I had to put my luggage all the way in the back! They served only a beverage no snack on the way in Air Canada, definitely not a good first impression.

When we got to the airport for our flight from Chicago to Montreal which was scheduled for 2.00 p.m. they had no record of it and booked us on a flight at 3.30 very disappointing . We also had to pay 50.00 each for a seat. All things considered ,I will never book thru Kayak again. Next time I will only book directly thru Air Canada no second party booking Sue

There were changes to my flight with many email and very difficult to keep up with details of changes. I consulted Air Canada website that said I was to depart Casablanca at 9:35 but when I got to airport that take off time was delayed by 2 hours. That's 2 hours at an airport instead of bed. I don't understand why Air Canada website didn't show the change in take off like they showed the change in transfer. Do better.

I liked that the flight was on time for departure and arrival

Flight takeoff delayed as second plane needed to be towed to the gate. At my check in kiosk, an Air Canada staffer was walking by and paused to help me. Flight attendant was careful and helpful with my carry on. Spectacular customer service. No food. It was a short flight.

2 hour delay in Montreal sitting in the planes and then 50 minutes waiting for a gate in Chicago. The least they could do was to give us snacks while we sat in the plane over the dinner hour. Instead they wanted $6 for pretzels, chips or crackers. Come on at least give us those for free while we wait on a 3 hour delay.

Booked through Kayak and what I thought was Air Canada. Had a United flight number and needed to check in with United. Not even in AC system. At O hare we arrived at terminal 2 and sent our bags to terminal 1. Fun way to end a trip, walk two blocks to get your bags, then 2 blocks back to get picked up.

Limited legroom and old direct tv technology made for a very uncomfortable 4 hour flight. Delays getting out of the gate were not communicated adequately, so there was unrest at the start.

Never made ir to Chicago. I had to take a flight to Columbus Ohio, to get the closest possible. Because, the flight they booked, and rebooted for us 4 times ended up canceled, or delayed making us missed our connection or returned to where we came from.

Everything you need to know for your flight from Montreal to Chicago

Other airlines flying from Montreal to Chicago

Flights from the other most popular airlines that fly from Montreal to Chicago according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.