C$ 600 Find Cheap Flights from Montreal to Australia

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 Australia departing on 6/9. 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.
1 adult
1 adult, Economy

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Best Australia Flight Deals from Montreal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney1 stopC$ 1,771
Brisbane
Brisbane2 stopsC$ 1,734
Perth
Perth2 stopsC$ 2,185
Adelaide
Adelaide2 stopsC$ 2,363
Sydney
Sydney1 stopC$ 1,771
Brisbane
Brisbane2 stopsC$ 1,734
Perth
Perth2 stopsC$ 2,185
Adelaide
Adelaide2 stopsC$ 2,363

Cheap Flights from Montreal to Australia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Montreal to Australia 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 Australia

Mon, 20 Oct - Tue, 11 Nov
Air New Zealand Logo
7:30 a.m. - 7:45 a.m.YUL-BNE
34h 15m2 stops
Air New Zealand Logo
11:10 a.m. - 6:44 a.m.BNE-YUL
34h 34m2 stops
C$ 1,734Air New Zealand
Find Deal
Mon, 20 Oct - Tue, 11 Nov
Air New Zealand Logo
8:25 a.m. - 7:45 a.m.YUL-BNE
33h 20m2 stops
Air New Zealand Logo
11:10 a.m. - 6:44 a.m.BNE-YUL
34h 34m2 stops
C$ 1,738Air New Zealand
Find Deal
Sun, 24 Aug - Mon, 8 Sep
Air Canada Logo
6:00 p.m. - 7:20 a.m.YUL-SYD
23h 20m1 stop
Air Canada Logo
9:20 a.m. - 4:36 p.m.SYD-YUL
21h 16m1 stop
C$ 1,771Air Canada
Find Deal
Sun, 24 Aug - Mon, 8 Sep
Air Canada Logo
4:45 p.m. - 7:20 a.m.YUL-SYD
24h 35m1 stop
Air Canada Logo
9:20 a.m. - 4:36 p.m.SYD-YUL
21h 16m1 stop
C$ 1,778Air Canada
Find Deal
Tue, 28 Oct - Mon, 10 Nov
United Airlines Logo
2:13 p.m. - 9:00 a.m.YUL-MEL
27h 47m2 stops
United Airlines Logo
1:00 p.m. - 9:42 p.m.MEL-YUL
24h 42m2 stops
C$ 2,153United Airlines
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Wed, 27 Aug - Wed, 24 Sep
United Airlines Logo
6:30 p.m. - 8:15 a.m.YUL-MEL
23h 45m1 stop
United Airlines Logo
10:55 a.m. - 8:16 a.m.MEL-YUL
35h 21m1 stop
C$ 2,159United Airlines
Find Deal
Mon, 18 Aug - Sun, 7 Sep
Air France Logo
10:30 p.m. - 12:40 a.m.YUL-PER
38h 10m2 stops
Air France Logo
12:25 p.m. - 12:05 p.m.PER-YUL
35h 40m2 stops
C$ 2,185Air France
Find Deal
Mon, 18 Aug - Sun, 7 Sep
Air France Logo
9:00 p.m. - 12:40 a.m.YUL-PER
39h 40m2 stops
Air France Logo
12:25 p.m. - 12:05 p.m.PER-YUL
35h 40m2 stops
C$ 2,228Air France
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Mon, 10 Nov - Mon, 17 Nov
Qatar Airways Logo
8:50 p.m. - 1:35 p.m.YUL-MEL
48h 45m2 stops
Qatar Airways Logo
5:10 p.m. - 2:05 p.m.MEL-YUL
36h 55m1 stop
C$ 2,243Qatar Airways
Find Deal
Fri, 31 Oct - Tue, 11 Nov
Qatar Airways Logo
9:50 p.m. - 5:50 p.m.YUL-MEL
29h 00m1 stop
Qatar Airways Logo
6:00 p.m. - 2:05 p.m.MEL-YUL
36h 05m2 stops
C$ 2,302Qatar Airways
Find Deal
Booking Insights

KAYAK's insights & trends for Montreal to Australia flights

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

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

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 Australia, 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 Australia is May, when tickets cost C$ 1,992 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of round-trip tickets is C$ 2,715 and C$ 2,672 respectively.

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

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

Your flight ticket price will generally be cheaper if you fly to Australia on a Sunday and more expensive on a Friday. On your return trip to Montreal, you should consider flying back on a Friday, and avoid Saturdays for better deals.

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

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 Australia, 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 a flight from Montreal Pierre Elliott Trudeau Intl Airport to Australia, you should book around 5 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.


Good to know

Low seasonSeptember
Cheapest flightC$ 600
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (25% more expensive on average)
Flight from Montreal to Sydney

FAQs - booking Australia flights

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

    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 Australia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Montreal to Australia 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 Australia?

    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 from Montreal to Australia with an airline and back with another airline.

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

    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 from Montreal to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Australia?

    The cheapest time of day to fly to Australia is generally at night, when round-trip flights cost C$ 1,374 on average. Morning departures are around 16% cheaper than evening flights, on average. The most expensive time of day to fly to Australia is generally in the evening, which is peak travel time and where the average cost of a ticket is C$ 1,647.

Reviews of the top 5 airlines flying from Montreal to Australia

 
Need help choosing which airline to fly with from Montreal to Australia? 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
DeltaOverall score based on 7981 reviews
7.3Food
8.5Crew
7.9Entertainment
8.2Boarding
7.9Comfort
Airline reviews

There was no problems, just a little uncomfortable with seats that do not lay back a little

8.0 ExcellentWillie, Jul 2025PHX - DTW
Read more Delta reviews

There was no problems, just a little uncomfortable with seats that do not lay back a little

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

After I checked in, I realized we had no seat assignment. It said they would be assigned at the gate. This was really frustrating because I usually use a lounge before flights, but I couldn't because I had to be at the gate to ensure we got our seat assignments. The gate agent arrived an hour before the flight left. I was the first one up to ask about seat assignments. She told us to wait for names to be called. Dozens of other passengers were paged, but we were not. Finally, I asked my husband to ask. He went up and was also told to wait. About 10 minutes later, they called for boarding. We still had not been told our seats. We went back to the desk and they were in a panic, saying we actually weren't on that flight. Then they made an announcement telling the stand by passengers to not board (in case we needed their seats). It was so stressful and unprofessional. Finally they gave us our seats. I have no idea what happened and why the two desk agents seemed to have conflicting ideas about our seats, whether we were on that flight etc.

I always fly Delta main cabin and pay to upgrade my seat to preferred/extra leg room. However this time even with the buying the upgraded seat I was extremely cramped with very little legroom and unable to move comfortably. For some reason meal service was very early in the flight and my row seemed to have been skipped. Most of my attendant calls were unanswered. I was unable to get extra water, or crackers/snacks to make up for my missed meal. I always carry protein bars in my personal bag, but with no extra legroom I wasn’t able to access from underseat in front of me. I am unable to sleep while flying so I read and count on in flight entertainment. However the passenger in front of me reclined their seat fully preventing me from being able to view the screen or be able to rest my book on tray table to read. One of the first times I’ve been completely disappointed in Delta. I fly internationally 2-3 times a year.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

The crew was very kind and always smiling. The seats were great and I was very comfortable during the flight. The only thing I didn't like was that the lavatories got really dirty at some point during the flight. Other than that my experience was great

Not a comfortable trip, the seats are not good, and they look old.

Lost my luggage and brought someone else luggage to my airport.

Not entirely positive. It’s frustrating that everything is done through the united app. One of our flight attendants on our trip from San Francisco to MSP continually had trouble hearing people so she flipped her hair into people’s faces

I flew United from San Francisco to Auckland. My connecting flight from Auckland to Christchurch was canceled with no explanation. I was finally told the cancellation was due to fog. Even though it was clear when we landed. I am from San Francisco, I know what fog is! And I didn't see any fog. I was told the next available flight was 7 hours later. Unacceptable, they should have had a flight ready to go as soon as it was deemed safe to take off.

Our original flight was cancelled from SFO to AKL on 6/16/25. So we had to stay overnight at a hotel after a 12-hour layover plus 3-hour delay before the cancellation. Then had to fly to LA and then to AKL the following day losing an entire day of our vacation in NZ, that we can never get back.

Two hours was not enough time to transition from the international to domestic terminal. You have to go through customs, a biological hazard check, gather your luggage, take a bus to the domestic terminal and recheck your luggage. The bus was slow and crowded and the lines to recheck your bags were very long. We missed our connecting flight. Initially, the Air New Zealand officials were not helpful at all in helping to get us on another flight. Told us we would have to buy another ticket for a flight 11 hours later. Found another agent that was more helpful. He helped arrange to get us on standby for another flight three hours later. Had to ride in jump seats next to the flight attendants, but at least we eventually got to out destination.

Full flight. Flight attendants were harried. Otherwise, fine for the typical cramped seating conditions in coach.

Great! Flight was delayed by 30 mins but all was great. Thanks.

The 10hr flight was a comfortable as it could be in row 57. The food was just very bad….bland and soggy!

The business class upgrade meant a good sleep on the way home after a long week away. Excellent service, great food, and comfortable seat/bed for the journey.

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

The seats were uncomfortable. The service was poor. We bought internet for my family and myself and it didn’t work. The charger for our phone didn’t work. The service seemed like they were tired and exhausted and seemed a bit upset. It was not a good flight. Our flight from miami to Qatar was great but from Qatar to Tokyo was simply awful

The American/Hollywood movies in the entertainment system lack english subtitles, they tend to have only arabic subtitles. Coupled with the low quality airplane earphones and cabin noise, it sometimes is difficult to follow the movie dialogues.

I was unable to pre purchase sear upgrades or internet. Their online site is not user friendly and poor. I felt singled out in customs. Seats are very small even for a small person.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

There was not enough food for everybody. Some dishes were missing.

Was downgraded from business to economy due to a faulty seat in business class. However when I boarded the plane there were no less than 5 free business class seats. Will never fly Qatar Airways again

Wasn’t allowed to continue with the purchased tickets because I hadn’t been able to go on the first scheduled leg.

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

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

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

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

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

It was my first time with United Airlines and I would say it was very good experience and best of all the flights were on time. Will definitely fly with United Airlines next time.

When I came in the front door in Montreal airport I didn't know where to go, first time traveling. Signs were not directing me.

Aircanada was not great. Didn't get anything to eat. No snacks. No entertainment. Horrible checking in.

My return flight experience was one of the worst times I have had traveling anywhere this year. Not because of the flight. It was because there was not enough time allocated to deplane, go through U.S. Customs and U.S. Security to get to the gate for the connecting flight to Boston which I missed, There was well less than an hour between my landing in Montreal from Prince Edward Island to my connecting gate. I even called Air Canada on the morning of my return and noted my concern over the short layover time, not more that 45 minutes. The initial flight was four minutes late. I was seated in the rear of the first aircraft, and it took at least 20 minutes to deplane. The U.S. Customs was a considerable distance from the gate at which we landed. The need for double security seemed unnecessary and redundant. The distance from the security to my gate was again fairly great, and the wrong gate number was listed on my boarding pass. The agent I approached at the flight that was going to Newark, New Jersey was too busy to answer my question as to what gate was for Boston. When I got to the right gate, they had just closed the door to the aircraft even though I arrived a minute late. If I knew the distance to Customs and from Security to the gate, I would have asked for a seat on the next available flight which was 4:30 pm. When I made my call at 6:00AM that morning. When I asked the agent at the Boston gate, he said that the 4:30 flight was already “OVERBOOKED!” I was put on an 8:30 PM flight and didn’t get home until MIDNIGHT. I then had to care for a barnful of hungry animals and didn’t get to bed until 2:00 AM.

From Montreal to Cincinnati the flight was perfect! Flight free and everyone was perfect and a pleasure to travel with. But from Casablanca to Montreal the flight crew were quite cold, unhelpful, also seemed to scold many passengers instead of simply educating or instructing them. There were a couple for sure I could describe but not name… i was really shocked bc my experience w air Canada is typically a good one at the very least. It seemed something was very much so I’m the air w the crew. The two older lady crew members and the male were amazing but the younger lady crew members w the exception of one were very clique-y and snarky, sassy

Seating wasn’t too cramped; I don’t understand how luggage bins get full if there are enough for each person. Shouldn’t there be room for the designated carry-on and personal item for each passenger at their seat? THEN, IF for some reason extra room is available for someone who prefers it, then shifts can occur. I’m simply saying it seems that I should have primary access to the storage bin at my seat and underneath in front of me. It was suggested that I go to the back of the plane to store my carry-on when I paid to have access to the first seat after 1st class. The additional stress and inconvenience could be avoided and I think all passengers and flight crew are interested in guidelines that are fair, clear, and reduce tension.

The flight was delayed for 2 hrs. We were changed to a smaller plane, which was shaking a lot.

Took forever to depart parked on the runway for ever after three departure delays. Could have walked...

It was 3 hours late and ruined my plans at destination. Also rough landing.

Flight got canceled last minute and rescheduled 3 days later, as if we do not have jobs and children to return to. 5+ hours on hold with customer support with no answer. We booked a different airline and spent 3x as much to escape Montreal bc of Air Canada. Still haven’t heard from them. Boooo

Seamless! Long but the seat back entertainment kept us all busy the whole time! Meals were excellent! Crew fantastic! Very attentive!

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