$796 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 22/4. 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$1,619
Melbourne
Melbourne2 stops$1,845
Brisbane
Brisbane1 stop$1,869
Perth
Perth2 stops$2,399
Adelaide
Adelaide2 stops$2,411
Cairns
Cairns2 stops$2,433
Sydney
Sydney2 stops$1,619
Melbourne
Melbourne2 stops$1,845
Brisbane
Brisbane1 stop$1,869
Perth
Perth2 stops$2,399
Adelaide
Adelaide2 stops$2,411
Cairns
Cairns2 stops$2,433

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

Sat, 16 May - Sun, 24 May
Delta Logo
12:40 - 06:50
YUL
-
SYD
52h 10m
2 stops
Delta Logo
09:15 - 23:41
SYD
-
YUL
28h 26m
2 stops
$1,619Delta
Sat, 2 May - Sat, 9 May
Multiple Airlines Logo
16:55 - 11:50
YUL
-
SYD
28h 55m
2 stops
Multiple Airlines Logo
13:15 - 06:51
SYD
-
YUL
31h 36m
2 stops
$1,656Multiple Airlines
Fri, 17 Apr - Tue, 28 Apr
Delta Logo
18:45 - 06:50
YUL
-
SYD
46h 05m
2 stops
Delta Logo
09:15 - 23:08
SYD
-
YUL
27h 53m
2 stops
$1,671Delta
Sat, 11 Apr - Wed, 29 Apr
Air Canada Logo
13:25 - 11:05
YUL
-
MEL
31h 40m
2 stops
Air Canada Logo
06:00 - 19:12
MEL
-
YUL
27h 12m
2 stops
$1,852Air Canada
Sat, 11 Apr - Wed, 29 Apr
Air Canada Logo
13:25 - 11:05
YUL
-
MEL
31h 40m
2 stops
Air Canada Logo
06:00 - 19:12
MEL
-
YUL
27h 12m
2 stops
$1,853Air Canada
Wed, 29 Jul - Wed, 19 Aug
United Airlines Logo
18:35 - 06:30
YUL
-
BNE
21h 55m
1 stop
United Airlines Logo
10:30 - 08:16
BNE
-
YUL
35h 46m
1 stop
$1,869United Airlines
Sun, 5 Apr - Sun, 26 Apr
United Airlines Logo
15:25 - 06:30
YUL
-
BNE
25h 05m
2 stops
United Airlines Logo
10:30 - 22:06
BNE
-
YUL
25h 36m
2 stops
$1,904United Airlines
Mon, 1 Jun - Tue, 9 Jun
Qatar Airways Logo
20:55 - 23:30
YUL
-
PER
38h 35m
2 stops
Qatar Airways Logo
15:40 - 14:45
PER
-
YUL
35h 05m
1 stop
$2,399Qatar Airways
Mon, 1 Jun - Tue, 9 Jun
Qatar Airways Logo
20:55 - 23:30
YUL
-
PER
38h 35m
2 stops
Qatar Airways Logo
15:40 - 14:45
PER
-
YUL
35h 05m
1 stop
$2,405Qatar Airways
Wed, 12 Aug - Wed, 16 Sep
Air New Zealand Logo
17:30 - 10:55
YUL
-
ADL
27h 55m
2 stops
Air New Zealand Logo
12:05 - 06:40
ADL
-
YUL
32h 05m
2 stops
$2,411Air New Zealand
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 May, when tickets cost $2,092 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of return tickets is $2,655 and $2,626 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 8 weeks before departure, which saves you about 17% 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 flight$796
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (20% 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 10818 reviews
7.1Comfort
7.8Crew
6.3Food
6.8Entertainment
7.3Boarding
Airline reviews

Business Class was great with two exceptions: they should board Business Class Only first, then loyalty, then handicapped and families with young children then by zone. With all the loyalty and credit card holders and families with kids, dozens boarded before us and we were in row 3. My only other compliant with Air Canada is they don’t serve drinks and snacks in business class until at a cruising altitude. Transat and Emirates serve prior to takeoff which is especially nice during boarding of big planes and de-icing.

8.0 ExcellentPaul, Feb 2026
YUL - PVR
Read more Air Canada reviews

Business Class was great with two exceptions: they should board Business Class Only first, then loyalty, then handicapped and families with young children then by zone. With all the loyalty and credit card holders and families with kids, dozens boarded before us and we were in row 3. My only other compliant with Air Canada is they don’t serve drinks and snacks in business class until at a cruising altitude. Transat and Emirates serve prior to takeoff which is especially nice during boarding of big planes and de-icing.

The only good part was what we paid for, we travelled premium economy, good comfort travelling with a baby. Flight with AirCanada was again delayed for more than 4 hours, service level is horrible and they don't care. They deliver the bare minimum for a world class price. If you can avoid canadian air lines, do so, oligopoly does not help them to strive for any service level.

We left over 2 hours late and they didn't even give us a complimentary snack, when getting to the desk I asked if I could be put in a row with only 1 other person or an empt y one I was told the flight was full when the last two rows were empty. All around over it

Again, we were rerouted all the way to Zurich and had a longer journey than expected.

Overall a good experience as this leg I was in Business Class. The Lounge was amazing with a view of the planes. The flight attendant spoke way to quickly when giving the information for take off and landing and it would be of no use to a first time traveler. Overall a great airline to travel on.

Smooth on-time flight but NO AC in the middle of the cabin. Business Class and the rear of the cabin were too cold but mid-cabin was stuffy and hot with virtually no air coming out of the ducts. Made for a very long and uncomfortable flight.

Air Canada’s problems are not staff related by and large, no. The problem is tiny jets between the U.S. and Canada - yes, believe it or not they are still “international” (just ask our own Mango Maniac in power in the U.S.). The little aisle is compounded by a design flaw of a “dog leg” starting at seat 12. Woe be unto you if you sit here as passengers and attendants do not have sufficient room to not hit you in the face with backpacks. One thing I will say very positively about Air Canada is you still provide pillows and blankets on transcontinental flights to all, not just the elites. Your tiny improperly designed jets are also a problem flying city to city within Canada also. One can only say you remind us of a “Jet Blue” or “Spirit” experience. Also your luggage space is downright Byzantine! We will endeavor to avoid you and use other U.S. carriers, albeit charging more.

Terrible canceled flight and lost my luggage. Flew me to Halifax. Tgat flight was delayed, had to spend night in airport chair.

The airplane has been replaced and late night layover have been extended from 3 to 7 and the only compensation was a $15 food voucher after most restaurants have been closed, not helping with children after a 18+ hour international flight

My seat was not comfortable. Flight was smooth. Regretfully we had two delays before takeoff

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

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