$780 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 18/2. 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$1,559
Melbourne
Melbourne3 stops$1,549
Brisbane
Brisbane2 stops$1,449
Perth
Perth2 stops$2,112
Adelaide
Adelaide2 stops$2,312
Cairns
Cairns2 stops$2,262
Sydney
Sydney2 stops$1,559
Melbourne
Melbourne3 stops$1,549
Brisbane
Brisbane2 stops$1,449
Perth
Perth2 stops$2,112
Adelaide
Adelaide2 stops$2,312
Cairns
Cairns2 stops$2,262

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

Wed, 6 May - Wed, 20 May
Air Canada Logo
13:30 - 07:05
YUL
-
BNE
27h 35m
2 stops
Air Canada Logo
10:00 - 19:27
BNE
-
YUL
23h 27m
1 stop
$1,449Air Canada
Sat, 21 Feb - Fri, 6 Mar
Air Canada Logo
20:50 - 08:45
YUL
-
BNE
44h 55m
2 stops
Air Canada Logo
10:45 - 18:44
BNE
-
YUL
22h 59m
2 stops
$1,531Air Canada
Sat, 21 Feb - Fri, 6 Mar
Air Canada Logo
20:50 - 08:45
YUL
-
BNE
44h 55m
2 stops
Air Canada Logo
10:45 - 17:00
BNE
-
YUL
21h 15m
1 stop
$1,533Air Canada
Sun, 5 Apr - Sun, 26 Apr
Multiple Airlines Logo
07:00 - 05:00
YUL
-
BNE
32h 00m
2 stops
Multiple Airlines Logo
20:35 - 11:44
BNE
-
YUL
29h 09m
2 stops
$1,579Multiple Airlines
Sun, 8 Feb - Wed, 18 Feb
Multiple Airlines Logo
15:50 - 09:30
YUL
-
MEL
25h 40m
2 stops
Multiple Airlines Logo
12:00 - 22:56
MEL
-
YUL
26h 56m
2 stops
$1,579Multiple Airlines
Sat, 14 Mar - Tue, 24 Mar
Qantas Airways Logo
15:45 - 09:30
YUL
-
MEL
50h 45m
2 stops
Qantas Airways Logo
12:00 - 15:05
MEL
-
YUL
42h 05m
2 stops
$1,643Qantas Airways
Sun, 8 Mar - Mon, 16 Mar
Air New Zealand Logo
13:25 - 08:35
YUL
-
SYD
28h 10m
1 stop
Air New Zealand Logo
10:25 - 11:40
SYD
-
YUL
40h 15m
2 stops
$1,652Air New Zealand
Sat, 7 Mar - Sat, 28 Mar
Qantas Airways Logo
15:45 - 05:30
YUL
-
BNE
46h 45m
2 stops
Qantas Airways Logo
09:40 - 14:58
BNE
-
YUL
43h 18m
2 stops
$1,700Qantas Airways
Wed, 25 Feb - Wed, 4 Mar
Qatar Airways Logo
20:50 - 11:55
YUL
-
PER
26h 05m
1 stop
Qatar Airways Logo
22:55 - 14:05
PER
-
YUL
52h 10m
2 stops
$2,266Qatar Airways
Sun, 15 Feb - Sat, 21 Feb
Qatar Airways Logo
20:50 - 12:20
YUL
-
PER
26h 30m
1 stop
Qatar Airways Logo
10:10 - 14:05
PER
-
YUL
40h 55m
2 stops
$2,327Qatar Airways
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 $2,082 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $2,734 and $2,713 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 20% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$780
Best time to beat the crowds (6% 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 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 10667 reviews
7.3Boarding
6.3Food
7.8Crew
6.8Entertainment
7.1Comfort
Airline reviews

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.

10.0 ExcellentAngela, Jan 2026
YUL - SXM
Read more Air Canada reviews

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

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

This flight with a lot empty place , and I have more room, feeling comfortable.

Flight was good, breakfast could be much better. We had come from a domestic flight on the same aircraft and the domestic flight was much better regarding service compared to this international flight.

I accidentally touched a cabin steward as she passed by and she reacted harshly yelling in a loud voice “don’t touch me”. It was embarrassing and uncalled for. I would characterize a few of the cabin crew as pretentious and aloof. Not at all what is expected. That was the first leg of our trip from Montreal to Munich. The second leg from Munich to Nice was more in keeping with the service I expected.

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

Information on your arrival and departure airports