$718 Find Cheap Flights from Montreal to Australia – 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 Pierre Elliott Trudeau Intl to Australia departing on 12/8. 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.
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$1,542
Melbourne
Melbourne2 stops$1,312
Brisbane
Brisbane2 stops$1,344
Adelaide
Adelaide1 stop$1,872
Perth
Perth1 stop$1,904
Cairns
Cairns1 stop$2,345
Sydney
Sydney2 stops$1,542
Melbourne
Melbourne2 stops$1,312
Brisbane
Brisbane2 stops$1,344
Adelaide
Adelaide1 stop$1,872
Perth
Perth1 stop$1,904
Cairns
Cairns1 stop$2,345

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

Fri, 14 Aug - Fri, 28 Aug
Delta Logo
07:00 - 07:50
YUL
-
MEL
34h 50m
2 stops
Delta Logo
10:00 - 23:52
MEL
-
YUL
27h 52m
2 stops
$1,312Delta
Tue, 11 Aug - Fri, 21 Aug
Delta Logo
18:51 - 07:50
YUL
-
MEL
46h 59m
2 stops
Delta Logo
10:00 - 23:52
MEL
-
YUL
27h 52m
2 stops
$1,312Delta
Thu, 13 Aug - Sun, 23 Aug
Delta Logo
18:51 - 07:50
YUL
-
MEL
46h 59m
2 stops
Delta Logo
10:00 - 23:40
MEL
-
YUL
27h 40m
2 stops
$1,313Delta
Wed, 12 Aug - Sun, 23 Aug
Delta Logo
07:00 - 07:50
YUL
-
MEL
34h 50m
2 stops
Delta Logo
10:00 - 17:46
MEL
-
YUL
45h 46m
2 stops
$1,313Delta
Tue, 11 Aug - Sun, 23 Aug
Delta Logo
18:51 - 07:50
YUL
-
MEL
46h 59m
2 stops
Delta Logo
10:00 - 23:52
MEL
-
YUL
27h 52m
2 stops
$1,313Delta
Fri, 14 Aug - Sun, 23 Aug
Delta Logo
07:00 - 07:50
YUL
-
MEL
34h 50m
2 stops
Delta Logo
10:00 - 23:40
MEL
-
YUL
51h 40m
2 stops
$1,313Delta
Sun, 17 Jan - Sun, 31 Jan
Delta Logo
18:15 - 08:30
YUL
-
BNE
47h 15m
2 stops
Delta Logo
10:40 - 23:51
BNE
-
YUL
28h 11m
2 stops
$1,344Delta
Wed, 20 Jan - Wed, 3 Feb
Delta Logo
12:45 - 08:30
YUL
-
BNE
28h 45m
2 stops
Delta Logo
10:40 - 11:44
BNE
-
YUL
40h 04m
2 stops
$1,352Delta
Fri, 16 Oct - Sun, 25 Oct
Air Canada Logo
18:00 - 07:05
YUL
-
BNE
23h 05m
1 stop
Air Canada Logo
09:45 - 18:43
BNE
-
YUL
22h 58m
2 stops
$2,150Air Canada
Fri, 16 Oct - Sun, 25 Oct
Air Canada Logo
18:00 - 07:05
YUL
-
BNE
23h 05m
1 stop
Air Canada Logo
09:45 - 17:04
BNE
-
YUL
21h 19m
1 stop
$2,150Air 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 May, when tickets cost $2,007 (return) on average. On the other hand, the most expensive months are December and January, when the average cost of return tickets is $2,740 and $2,656 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 2 weeks before departure, which saves you about 14% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Find deals

Good to know

Low season

July

Cheapest flight

$718
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly (19% 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 11415 reviews
7.1Comfort
6.3Food
7.8Crew
6.8Entertainment
7.3Boarding
Airline reviews

Terrible! Our flight was cancelled. No other nonstop flights available. Had to rent a car and drive 7 hours!

2.0 MediocreAnonymous, July 2026
YUL - PHL
Read more Air Canada reviews

Terrible! Our flight was cancelled. No other nonstop flights available. Had to rent a car and drive 7 hours!

I really enjoyed the delicious food and the delicious breakfast; I also liked the seat—it was very comfortable—and the service was absolutely wonderful. The trip was smooth.

The food was awful. It had more than 2 hours delay. It was too expensive

They are offering less and less for more and more. They changed our seat that we paid extra to select at the last minute. The seats are way too narrow and my elbows went numb.

My original flight was canceled the day before due to mechanical issues. I had to rebook and spend $129 for a night at the airport Comfort Inn.

Cancelled flight, had to rearrange plans independently and no vouchers offered

lack of older, great films. Too many child-oriented films. Calculate your % of children passengers, which will be minor.

Delayed 2 and a half hours Middle seat next to a majorly overweight guy who took up most of my seat

Multiple delays and gate changes resulting in arrival with a 5 hour delay.

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?

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

Information on your arrival and departure airports

Montreal (YUL)