What is the cheapest airline that flies from Montreal to Australia?

Delta, Qatar Airways, and Cathay Pacific are the most popular carriers operating from Montreal to Australia

When did momondo last update prices for flights from Montreal to Australia?

Prices for flights from Montreal to Australia are refreshed on a daily basis.

How many operators does momondo search for flights from Montreal to Australia?

The number of operators available for flights from Montreal to Australia is 1 as of December 2025.

How old do you have to be to fly from Montreal to Australia?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montreal to Australia.

What documentation or ID do you need to fly to Australia?

The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$849 Cheap Flights from Montreal to Australia in 2025/26

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Montreal to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:00 - 06:35

YUL

SYD

33h 35m2 stops

09:25 - 23:34

SYD

YUL

28h 09m2 stops

$1,436Delta

Mon, 4 May - Mon, 18 May

18:15 - 06:35

YUL

SYD

46h 20m2 stops

09:25 - 23:10

SYD

YUL

27h 45m2 stops

$1,443Delta

Sun, 3 May - Mon, 18 May

21:30 - 08:45

YUL

BNE

44h 15m2 stops

10:45 - 11:58

BNE

YUL

39h 13m2 stops

$1,556Air Canada

Mon, 16 Feb - Mon, 9 Mar

22:30 - 07:05

YUL

BNE

42h 35m1 stop

10:00 - 20:20

BNE

YUL

24h 20m2 stops

$1,557Air Canada

Sat, 23 May - Wed, 27 May

09:15 - 07:30

YUL

BNE

31h 15m2 stops

11:40 - 15:16

BNE

YUL

42h 36m2 stops

$1,586United Airlines

Sun, 25 Jan - Mon, 9 Feb

09:15 - 07:30

YUL

BNE

31h 15m2 stops

11:40 - 15:16

BNE

YUL

42h 36m2 stops

$1,588United Airlines

Sun, 25 Jan - Mon, 9 Feb

18:20 - 13:35

YUL

MEL

28h 15m2 stops

06:00 - 13:21

MEL

YUL

45h 21m3 stops

$1,809Multiple Airlines

Sat, 21 Mar - Sat, 11 Apr

20:55 - 22:10

YUL

MEL

35h 15m1 stop

15:45 - 14:45

MEL

YUL

37h 00m1 stop

$1,887Qatar Airways

Wed, 22 Apr - Sat, 2 May

20:55 - 22:10

YUL

MEL

35h 15m1 stop

15:45 - 14:45

MEL

YUL

37h 00m1 stop

$1,893Qatar Airways

Sun, 26 Apr - Sat, 9 May

19:00 - 13:55

YUL

ADL

51h 25m3 stops

08:45 - 21:00

ADL

YUL

50h 45m2 stops

$2,093Multiple Airlines

Sat, 31 Jan - Mon, 16 Mar

Delta flights from Montreal to Australia

Our best Delta deals on Montreal to Australia flight tickets

Delta

4 May

YUL07:00Montreal Pierre Elliott Trudeau Intl

33h 35m

2 stops

SYD06:35Sydney Kingsford Smith

18 May

SYD09:25Sydney Kingsford Smith

28h 09m

2 stops

YUL23:34Montreal Pierre Elliott Trudeau Intl

$1,436

Find similar

Delta

3 May

YUL18:15Montreal Pierre Elliott Trudeau Intl

46h 20m

2 stops

SYD06:35Sydney Kingsford Smith

18 May

SYD09:25Sydney Kingsford Smith

27h 45m

2 stops

YUL23:10Montreal Pierre Elliott Trudeau Intl

$1,443

Find similar

Delta

31 Jan

YUL14:40Montreal Pierre Elliott Trudeau Intl

48h 10m

2 stops

SYD06:50Sydney Kingsford Smith

12 Apr

SYD09:25Sydney Kingsford Smith

27h 46m

2 stops

YUL23:11Montreal Pierre Elliott Trudeau Intl

$1,452

Find similar

Air Canada flights from Montreal to Australia

Our best Air Canada deals on Montreal to Australia flight tickets

Air Canada

16 Feb

YUL21:30Montreal Pierre Elliott Trudeau Intl

44h 15m

2 stops

BNE08:45Brisbane

9 Mar

BNE10:45Brisbane

39h 13m

2 stops

YUL11:58Montreal Pierre Elliott Trudeau Intl

$1,556

Find similar

Air Canada

23 May

YUL22:30Montreal Pierre Elliott Trudeau Intl

42h 35m

1 stop

BNE07:05Brisbane

27 May

BNE10:00Brisbane

24h 20m

2 stops

YUL20:20Montreal Pierre Elliott Trudeau Intl

$1,557

Find similar

Air Canada

31 Jan

YUL21:30Montreal Pierre Elliott Trudeau Intl

44h 05m

2 stops

SYD09:35Sydney Kingsford Smith

4 Mar

SYD11:20Sydney Kingsford Smith

35h 50m

2 stops

YUL07:10Montreal Pierre Elliott Trudeau Intl

$1,560

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 4/5

07:00-06:35

2 stops33h 35m

Sydney Kingsford Smith

Mon 18/5

09:25-23:34

2 stops28h 09m

$1,436

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

18:15-06:35

2 stops46h 20m

Sydney Kingsford Smith

Mon 18/5

09:25-23:10

2 stops27h 45m

$1,443

MontrealBrisbane

YUL - BNE

YULBNE

Montreal Pierre Elliott Trudeau Intl

Mon 16/2

21:30-08:45

2 stops44h 15m

Brisbane

Mon 9/3

10:45-11:58

2 stops39h 13m

$1,556

MontrealBrisbane

YUL - BNE

YULBNE

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

22:30-07:05

1 stop42h 35m

Brisbane

Wed 27/5

10:00-20:20

2 stops24h 20m

$1,557

MontrealBrisbane

YUL - BNE

YULBNE

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

09:15-07:30

2 stops31h 15m

Brisbane

Mon 9/2

11:40-15:16

2 stops42h 36m

$1,586

MontrealBrisbane

YUL - BNE

YULBNE

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

09:15-07:30

2 stops31h 15m

Brisbane

Mon 9/2

11:40-15:16

2 stops42h 36m

$1,588

MontrealMelbourne

YUL - MEL

YULMEL

Montreal Pierre Elliott Trudeau Intl

Sat 21/3

18:20-13:35

2 stops28h 15m

Melbourne

Sat 11/4

06:00-13:21

3 stops45h 21m

$1,809

MontrealMelbourne

YUL - MEL

YULMEL

Montreal Pierre Elliott Trudeau Intl

Wed 22/4

20:55-22:10

1 stop35h 15m

Melbourne

Sat 2/5

15:45-14:45

1 stop37h 00m

$1,887

MontrealMelbourne

YUL - MEL

YULMEL

Montreal Pierre Elliott Trudeau Intl

Sun 26/4

20:55-22:10

1 stop35h 15m

Melbourne

Sat 9/5

15:45-14:45

1 stop37h 00m

$1,893

MontrealAdelaide

YUL - ADL

YULADL

Montreal Pierre Elliott Trudeau Intl

Sat 31/1

19:00-13:55

3 stops51h 25m

Adelaide

Mon 16/3

08:45-21:00

2 stops50h 45m

$2,093

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Montreal to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Australia?

In general, September is the cheapest month to fly from Montreal to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $2,144. If you don’t want to visit Australia in September, then you should wait until April to fly from Montreal, when ticket prices are also cheap, with an average price of $2,224.

What is the cheapest day to depart on your flight to Australia?

On average, the least expensive day to fly to Australia from Montreal is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $2,394. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Montreal to Australia on a Thursday will generally be more expensive and average around $3,374. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Australia?

According to our data, the cheapest time of day to fly to Australia is in the afternoon. momondo users have found flights departing from Montreal to Australia in the afternoon for as low as $2,890. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Australia are more costly in the morning, with an average ticket price of $3,226. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $2,466 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Montreal for as low as $1,699 on momondo.

Can stopping save me money on Montreal to Australia flights?

You could potentially save up to 10% on your flight if you consider stops on a Montreal to Australia flight.

Cheap Montreal to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montreal to Australia

Fastest flight time	25h 50m
Direct flights	None

The fastest flight from Montreal to Australia takes 25h 50m

There are no direct flights from Montreal to Australia. There are no popular flight routes from Montreal to Australia.

Search flight deals

When did momondo last update prices for flights from Montreal to Australia?
Prices for flights from Montreal to Australia are refreshed on a daily basis.
How many operators does momondo search for flights from Montreal to Australia?
The number of operators available for flights from Montreal to Australia is 1 as of December 2025.
How old do you have to be to fly from Montreal to Australia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Montreal to Australia.
What documentation or ID do you need to fly to Australia?
The necessary travel and health documents for your Australia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montreal to Australia

Compare and see reviews for airlines that fly from Montreal to Australia with momondo

Airline	Rating	Free cancellation	Price
Air Canada	PriceFrom $644	Free cancellation	Rating 7.1 10,512 reviews		Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Montreal to Australia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Australia from Montreal.

Can I find flights from Montreal to Australia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Montreal to Australia flights to just show those with flexible booking policies.

How can momondo help me find flights from Montreal to Australia?

Once all potential Montreal to Australia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Montreal to Australia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Montreal to Australia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.