$720 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 Pierre Elliott Trudeau Intl to Australia departing on 28/7. 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, 0 bags

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Cheap Flights from Pierre Elliott Trudeau Intl to Australia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney2 stops$1,465
Melbourne
Melbourne2 stops$1,390
Brisbane
Brisbane3 stops$1,654
Adelaide
Adelaide2 stops$2,425
Perth
Perth2 stops$2,305
Cairns
Cairns2 stops$2,633
Sydney
Sydney2 stops$1,465
Melbourne
Melbourne2 stops$1,390
Brisbane
Brisbane3 stops$1,654
Adelaide
Adelaide2 stops$2,425
Perth
Perth2 stops$2,305
Cairns
Cairns2 stops$2,633

Book Cheap Pierre Elliott Trudeau Intl to Australia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Pierre Elliott Trudeau Intl 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 return flight deals from Pierre Elliott Trudeau Intl to Australia

Tue, 11 Aug - Sun, 23 Aug
Delta Logo
18:47 - 07:50
YUL
-
MEL
47h 03m
2 stops
Delta Logo
10:00 - 23:30
MEL
-
YUL
27h 30m
2 stops
$1,390Delta
Tue, 4 Aug - Sun, 16 Aug
Delta Logo
07:00 - 06:50
YUL
-
SYD
33h 50m
2 stops
Delta Logo
09:15 - 23:40
SYD
-
YUL
52h 25m
2 stops
$1,465Delta
Tue, 4 Aug - Tue, 18 Aug
Delta Logo
06:00 - 06:50
YUL
-
SYD
34h 50m
2 stops
Delta Logo
09:15 - 23:40
SYD
-
YUL
28h 25m
2 stops
$1,466Delta
Mon, 3 Aug - Sun, 16 Aug
Delta Logo
18:47 - 06:50
YUL
-
SYD
46h 03m
2 stops
Delta Logo
09:15 - 23:40
SYD
-
YUL
52h 25m
2 stops
$1,470Delta
Sat, 5 Sep - Sun, 27 Sep
Multiple Airlines Logo
07:15 - 11:50
YUL
-
SYD
38h 35m
3 stops
Multiple Airlines Logo
13:15 - 07:05
SYD
-
YUL
31h 50m
3 stops
$1,643Multiple Airlines
Sat, 5 Sep - Sun, 27 Sep
Multiple Airlines Logo
07:15 - 10:25
YUL
-
BNE
37h 10m
3 stops
Multiple Airlines Logo
11:35 - 07:05
BNE
-
YUL
33h 30m
3 stops
$1,654Multiple Airlines
Sun, 8 Nov - Wed, 18 Nov
Air Canada Logo
15:10 - 13:35
YUL
-
MEL
30h 25m
3 stops
Air Canada Logo
08:00 - 21:06
MEL
-
YUL
29h 06m
2 stops
$2,073Air Canada
Sat, 5 Sep - Sun, 27 Sep
Air New Zealand Logo
18:35 - 11:05
YUL
-
BNE
50h 30m
2 stops
Air New Zealand Logo
11:20 - 00:39
BNE
-
YUL
27h 19m
2 stops
$2,156Air New Zealand
Sat, 5 Sep - Sun, 27 Sep
Asiana Airlines Logo
21:30 - 07:05
YUL
-
BNE
43h 35m
2 stops
Asiana Airlines Logo
10:00 - 15:59
BNE
-
YUL
19h 59m
1 stop
$2,164Asiana Airlines
Sat, 24 Oct - Wed, 28 Oct
Air Canada Logo
18:00 - 18:10
YUL
-
ADL
33h 40m
2 stops
Air Canada Logo
06:10 - 21:06
ADL
-
YUL
29h 26m
2 stops
$2,425Air Canada
Booking Insights

KAYAK's insights & trends for Pierre Elliott Trudeau Intl to Australia flights

Get data-powered insights and trends into flights from Pierre Elliott Trudeau Intl 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 February, when tickets cost $286 (return) on average. On the other hand, the most expensive months are July and October, when the average cost of return tickets is $720 and $705 respectively.

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 3 weeks before departure, which saves you about 19% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$720
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (22% 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 return 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.

Reviews of the top airline flying from Pierre Elliott Trudeau Intl to Australia

 
Need help choosing which airline to fly with from Pierre Elliott Trudeau Intl 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.
7.1
Air CanadaOverall score based on 11200 reviews
6.3Food
7.3Boarding
7.1Comfort
7.8Crew
6.8Entertainment
Airline reviews

Didnt make it on flight. Flight was delayed. Then had to get rebooked for a flight that was 8 hours later. Guess who had to wait for 8 hours at the airport?

2.0 MediocreAmmata, June 2026
YUL - NRT
Read more Air Canada reviews

Didnt make it on flight. Flight was delayed. Then had to get rebooked for a flight that was 8 hours later. Guess who had to wait for 8 hours at the airport?

The flight was smooth, the plane was spacious and clean, the staff was kind and the food was decent.

Pretzels were a bit dry and dusty, however it is nice to have a choice between sweet and savory snacks.

The TV screen at my seat was not functioning for the entire duration of the flight. I informed a flight attendant about the issue, and I was told that I would receive a voucher as compensation. However, I never received this voucher afterward. I therefore kindly request to still receive the voucher that was promised to me.

Flight crew was great, and even the crew for checking bags! I had a question for a friend of mine flying tomorrow and the man I talked to was awesome and answered my questions and looked up things for me when he didn’t have to! I was able to give her current & accurate info for her flight and she was so appreciative too!!

As mentioned before the fact that my paid-for aisle seats had been changed to non-aisle seats is unacceptable. Happily one staff member at the boarding counter did correct it before the flights, otherwise I would have been forced to submit a formal complaint. If it happens again on return flights, I will put in a formal complaint.

Another good flight experience with Air Canada. The business section did not feature the full length sleeping arrangement, but this was a shorter trip. The food was excellent. But the flight crew was truly top tier: friendly, cheerful, helpful at all the right times. Air Canada truly outshines all U.S. carriers.

Everything could be better, the worst is the crew, looks like they are not happy in the work. Air Canada is downhill for years, every flight looks worst. Hope they can fix the issues, by now, just flying AC in toutes with no other alternatives. Shame.

This was my second leg of my trip and was delayed so was worried about my connection in Montreal. Still hungry so on boarding I asked a flight attendant if I could use my $14.00 voucher on the plane for food as I was starving. She said she would check and let me know but she never came back. So no food again as none was offered. Had to get my bags and check them again and that was ok but don’t understand why I had to go through security and because of them almost missed my flight. No food offered nor possibility to purchase food so still hungry and just watched a movie and hoped I could get food when I landed. Was able to use the $14.00 voucher to buy something and had my family bring food as I was now starving. I’ve been travelling on AC for years and this was my worst experience ever. After our flight got cancelled in SXM and was told the staff there didn’t work for AC so couldn’t do much to help us was not a good experience

Staff looked unprofessional. Sloppy uniforms and hardly a smile to be found

Everything you need to know for your flight from Pierre Elliott Trudeau Intl to Australia

Information on your arrival and departure airports