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Cheap flights from Montreal to Sydney from C$ 783

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montreal to Sydney departing on 18/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Montreal to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:50 p.m. - 12:35 p.m.
YUL
-
SYD
27h 45m
2 stops
Multiple Airlines Logo
1:15 p.m. - 7:10 a.m.
SYD
-
YUL
31h 55m
3 stops
C$ 1,717Multiple Airlines
Wed, 25 Mar - Tue, 5 May
Multiple Airlines Logo
9:10 a.m. - 12:35 p.m.
YUL
-
SYD
35h 25m
3 stops
Multiple Airlines Logo
6:00 a.m. - 12:35 a.m.
SYD
-
YUL
34h 35m
3 stops
C$ 1,741Multiple Airlines
Tue, 10 Feb - Tue, 17 Feb
Multiple Airlines Logo
5:50 p.m. - 12:35 p.m.
YUL
-
SYD
27h 45m
2 stops
Multiple Airlines Logo
1:15 p.m. - 6:56 a.m.
SYD
-
YUL
31h 41m
2 stops
C$ 1,771Multiple Airlines
Wed, 25 Mar - Tue, 5 May
Multiple Airlines Logo
12:10 p.m. - 12:35 p.m.
YUL
-
SYD
33h 25m
3 stops
Multiple Airlines Logo
1:15 p.m. - 7:10 a.m.
SYD
-
YUL
31h 55m
3 stops
C$ 1,773Multiple Airlines
Wed, 25 Mar - Tue, 5 May
Multiple Airlines Logo
8:45 a.m. - 12:35 p.m.
YUL
-
SYD
35h 50m
3 stops
Multiple Airlines Logo
2:00 p.m. - 9:46 a.m.
SYD
-
YUL
35h 46m
3 stops
C$ 1,777Multiple Airlines
Fri, 27 Feb - Fri, 6 Mar
Air New Zealand Logo
8:30 a.m. - 8:45 a.m.
YUL
-
SYD
34h 15m
2 stops
Air New Zealand Logo
11:55 a.m. - 12:40 a.m.
SYD
-
YUL
26h 45m
2 stops
C$ 1,791Air New Zealand
Sun, 3 May - Sun, 24 May
Air New Zealand Logo
7:30 a.m. - 8:45 a.m.
YUL
-
SYD
35h 15m
2 stops
Air New Zealand Logo
11:55 a.m. - 12:40 a.m.
SYD
-
YUL
26h 45m
2 stops
C$ 1,792Air New Zealand
Mon, 1 Jun - Mon, 15 Jun
Multiple Airlines Logo
6:45 p.m. - 12:35 p.m.
YUL
-
SYD
26h 50m
2 stops
Multiple Airlines Logo
2:50 p.m. - 11:21 a.m.
SYD
-
YUL
35h 31m
3 stops
C$ 1,798Multiple Airlines
Tue, 17 Mar - Sun, 29 Mar
Multiple Airlines Logo
6:45 p.m. - 12:35 p.m.
YUL
-
SYD
26h 50m
2 stops
Multiple Airlines Logo
1:15 p.m. - 10:45 a.m.
SYD
-
YUL
35h 30m
3 stops
C$ 1,808Multiple Airlines
Tue, 24 Mar - Mon, 13 Apr
Multiple Airlines Logo
6:45 a.m. - 8:45 a.m.
YUL
-
SYD
34h 00m
3 stops
Multiple Airlines Logo
11:45 a.m. - 12:35 a.m.
SYD
-
YUL
28h 50m
3 stops
C$ 1,810Multiple Airlines
Tue, 10 Feb - Tue, 17 Feb

United Airlines flights from Montreal to Sydney

Our best United Airlines deals on Montreal to Sydney flight tickets
United Airlines
26 Jan
YUL2:13 p.m.Montreal Pierre Elliott Trudeau Intl
26h 52m
2 stops
SYD9:05 a.m.Sydney Kingsford Smith
7 Apr
SYD10:20 a.m.Sydney Kingsford Smith
27h 53m
2 stops
YUL12:13 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,170
United Airlines
20 Jan
YUL2:13 p.m.Montreal Pierre Elliott Trudeau Intl
26h 52m
2 stops
SYD9:05 a.m.Sydney Kingsford Smith
27 Jan
SYD12:10 p.m.Sydney Kingsford Smith
25h 07m
2 stops
YUL9:17 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,184
United Airlines
27 Jan
YUL9:15 a.m.Montreal Pierre Elliott Trudeau Intl
29h 05m
2 stops
SYD6:20 a.m.Sydney Kingsford Smith
28 Feb
SYD11:50 a.m.Sydney Kingsford Smith
25h 52m
2 stops
YUL9:42 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,214

Air Canada flights from Montreal to Sydney

Our best Air Canada deals on Montreal to Sydney flight tickets
Air Canada
21 Jan
YUL9:00 a.m.Montreal Pierre Elliott Trudeau Intl
32h 35m
1 stop
SYD9:35 a.m.Sydney Kingsford Smith
14 Feb
SYD11:20 a.m.Sydney Kingsford Smith
24h 05m
1 stop
YUL7:25 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,438
Air Canada
21 Jan
YUL9:00 a.m.Montreal Pierre Elliott Trudeau Intl
32h 35m
1 stop
SYD9:35 a.m.Sydney Kingsford Smith
14 Feb
SYD11:20 a.m.Sydney Kingsford Smith
25h 25m
2 stops
YUL8:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,441
Air Canada
21 Jan
YUL9:00 a.m.Montreal Pierre Elliott Trudeau Intl
32h 35m
1 stop
SYD9:35 a.m.Sydney Kingsford Smith
14 Feb
SYD11:20 a.m.Sydney Kingsford Smith
24h 05m
1 stop
YUL7:25 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,474

momondo Fare Finder

 
Customize your flight search to find flights from Montreal to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 15 January 2026.
Use the filters below to find and compare flights from Montreal to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 25/3

5:50 p.m.-12:35 p.m.

2 stops27h 45m

Sydney Kingsford Smith

Tue 5/5

1:15 p.m.-7:10 a.m.

3 stops31h 55m

C$ 1,717

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 10/2

9:10 a.m.-12:35 p.m.

3 stops35h 25m

Sydney Kingsford Smith

Tue 17/2

6:00 a.m.-12:35 a.m.

3 stops34h 35m

C$ 1,741

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 25/3

5:50 p.m.-12:35 p.m.

2 stops27h 45m

Sydney Kingsford Smith

Tue 5/5

1:15 p.m.-6:56 a.m.

2 stops31h 41m

C$ 1,771

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 25/3

12:10 p.m.-12:35 p.m.

3 stops33h 25m

Sydney Kingsford Smith

Tue 5/5

1:15 p.m.-7:10 a.m.

3 stops31h 55m

C$ 1,773

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Fri 27/2

8:45 a.m.-12:35 p.m.

3 stops35h 50m

Sydney Kingsford Smith

Fri 6/3

2:00 p.m.-9:46 a.m.

3 stops35h 46m

C$ 1,777

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

8:30 a.m.-8:45 a.m.

2 stops34h 15m

Sydney Kingsford Smith

Sun 24/5

11:55 a.m.-12:40 a.m.

2 stops26h 45m

C$ 1,791

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

7:30 a.m.-8:45 a.m.

2 stops35h 15m

Sydney Kingsford Smith

Mon 15/6

11:55 a.m.-12:40 a.m.

2 stops26h 45m

C$ 1,792

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 17/3

6:45 p.m.-12:35 p.m.

2 stops26h 50m

Sydney Kingsford Smith

Sun 29/3

2:50 p.m.-11:21 a.m.

3 stops35h 31m

C$ 1,798

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 24/3

6:45 p.m.-12:35 p.m.

2 stops26h 50m

Sydney Kingsford Smith

Mon 13/4

1:15 p.m.-10:45 a.m.

3 stops35h 30m

C$ 1,808

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 10/2

6:45 a.m.-8:45 a.m.

3 stops34h 00m

Sydney Kingsford Smith

Tue 17/2

11:45 a.m.-12:35 a.m.

3 stops28h 50m

C$ 1,810

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

How to get the cheapest flight ticket from Montreal to Sydney

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

What is the typical price of a round-trip flight between Montreal and Sydney?

What is the cheapest month to fly to Sydney?

If you aren’t able to travel to Sydney during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of C$ 2,034.

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

You are more likely to see cheaper flights to Sydney from Montreal when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around C$ 2,266 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Montreal for as low as C$ 1,567 on momondo.

How have Montreal to Sydney flight prices changed over time?

As of January 2026, prices for Montreal to Sydney flights are approximately 20% cheaper when compared to flights at the same time last year.

When to book flights from Montreal to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Montreal to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Montreal to Sydney (YMQ to SYD) flight deals and tips

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

Fastest flight time

23h 25m

Direct flights

None
The fastest flight from Montreal to Sydney takes 23h 25m
There are no direct flights from Montreal to Sydney. There are no popular flight routes from Montreal to Sydney.
Search flight deals

  • How far is Montreal to Sydney Kingsford Smith by plane?

    A flight from Montreal to Sydney Kingsford Smith will travel around 16019.1 km. By plane, this route typically takes 23h 25m.

  • When did momondo last update prices for flights from Montreal to Sydney Kingsford Smith Airport?

    Prices for flights from Montreal to Sydney Kingsford Smith Airport are updated daily.

  • How many operators does momondo search for flights from Montreal to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Montreal to Sydney Kingsford Smith Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montreal to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The travel and health documents you'll need for your trip to Sydney Kingsford Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sydney Kingsford Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Montreal to Sydney?

Best airlines flying from Montreal to Sydney

Compare and see reviews for airlines that fly from Montreal to Sydney with momondo
Airline
Rating
Free Cancellation
Price
Porter AirlinesPriceFrom C$ 297Free CancellationRating
8.0
407 reviews
Search Porter Airlines flights
WestJetPriceFrom C$ 331Free CancellationRating
7.2
3,242 reviews
Search WestJet flights
DeltaPriceFrom C$ 453Free CancellationRating
7.9
8,049 reviews
Search Delta flights
Qantas AirwaysPriceFrom C$ 1,111Free CancellationRating
7.5
971 reviews
Search Qantas Airways flights
United AirlinesPriceFrom C$ 1,520Free CancellationRating
7.4
9,163 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 1,678Free CancellationRating
7.1
10,622 reviews
Search Air Canada flights
Air New ZealandPriceFrom C$ 1,740Free CancellationRating
8.0
570 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom C$ 2,087Free CancellationRating
7.4
3,715 reviews
Search Qatar Airways flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Penrith
Bondi Beach

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Montreal to Sydney . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Montreal to Sydney on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Montreal.

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

Price alerts on flights to Sydney from Montreal are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to Australia

Fly your favourite airline to Sydney

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Air Canada
United Airlines
Delta
Air New Zealand
Porter Airlines
WestJet
Qatar Airways
Qantas Airways