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Cheap flights from Montreal to Sydney from C$ 825

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 6/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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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
6:45 a.m. - 11:45 a.m.
YUL
-
SYD
39h 00m
3 stops
Multiple Airlines Logo
1:15 p.m. - 7:10 a.m.
SYD
-
YUL
31h 55m
3 stops
C$ 1,824Multiple Airlines
Sat, 18 Apr - Sat, 2 May
Multiple Airlines Logo
9:00 a.m. - 12:35 p.m.
YUL
-
SYD
35h 35m
3 stops
Multiple Airlines Logo
2:00 p.m. - 7:05 a.m.
SYD
-
YUL
32h 05m
3 stops
C$ 1,839Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
Multiple Airlines Logo
4:15 p.m. - 6:35 a.m.
YUL
-
SYD
24h 20m
2 stops
Multiple Airlines Logo
8:30 p.m. - 4:27 p.m.
SYD
-
YUL
57h 57m
2 stops
C$ 1,844Multiple Airlines
Mon, 13 Apr - Mon, 27 Apr
Air Canada Logo
8:05 a.m. - 9:35 a.m.
YUL
-
SYD
33h 30m
3 stops
Air Canada Logo
11:20 a.m. - 1:53 a.m.
SYD
-
YUL
30h 33m
3 stops
C$ 1,852Air Canada
Tue, 3 Feb - Tue, 17 Feb
Multiple Airlines Logo
12:10 p.m. - 12:35 p.m.
YUL
-
SYD
32h 25m
3 stops
Multiple Airlines Logo
6:00 a.m. - 12:35 a.m.
SYD
-
YUL
34h 35m
3 stops
C$ 1,862Multiple Airlines
Mon, 23 Feb - Sat, 28 Feb
Multiple Airlines Logo
7:30 p.m. - 6:35 a.m.
YUL
-
SYD
44h 05m
2 stops
Multiple Airlines Logo
5:50 p.m. - 3:13 p.m.
SYD
-
YUL
59h 23m
2 stops
C$ 1,869Multiple Airlines
Tue, 24 Mar - Sun, 12 Apr
Multiple Airlines Logo
7:30 p.m. - 6:35 a.m.
YUL
-
SYD
44h 05m
2 stops
Multiple Airlines Logo
6:50 p.m. - 3:13 p.m.
SYD
-
YUL
59h 23m
2 stops
C$ 1,870Multiple Airlines
Tue, 17 Mar - Sun, 29 Mar
Multiple Airlines Logo
6:45 a.m. - 6:55 a.m.
YUL
-
SYD
32h 10m
2 stops
Multiple Airlines Logo
8:30 p.m. - 7:05 a.m.
SYD
-
YUL
25h 35m
2 stops
C$ 1,871Multiple Airlines
Sun, 8 Feb - Wed, 18 Mar
Multiple Airlines Logo
5:55 p.m. - 11:45 a.m.
YUL
-
SYD
27h 50m
2 stops
Multiple Airlines Logo
1:15 p.m. - 7:15 a.m.
SYD
-
YUL
32h 00m
2 stops
C$ 1,874Multiple Airlines
Sat, 18 Apr - Sat, 2 May
Multiple Airlines Logo
6:45 a.m. - 6:35 a.m.
YUL
-
SYD
55h 50m
2 stops
Multiple Airlines Logo
8:30 p.m. - 7:05 a.m.
SYD
-
YUL
49h 35m
2 stops
C$ 1,877Multiple Airlines
Sun, 15 Feb - Sat, 21 Mar

Qantas Airways flights from Montreal to Sydney

Our best Qantas Airways deals on Montreal to Sydney flight tickets
Qantas Airways
10 May
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
57h 50m
2 stops
SYD6:35 a.m.Sydney Kingsford Smith
1 Jun
SYD8:30 p.m.Sydney Kingsford Smith
42h 12m
2 stops
YUL12:42 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,930
Qantas Airways
11 Apr
YUL12:30 p.m.Montreal Pierre Elliott Trudeau Intl
52h 35m
2 stops
SYD7:05 a.m.Sydney Kingsford Smith
27 Apr
SYD8:30 p.m.Sydney Kingsford Smith
66h 12m
2 stops
YUL12:42 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,937
Qantas Airways
23 Mar
YUL3:45 p.m.Montreal Pierre Elliott Trudeau Intl
26h 15m
2 stops
SYD9:00 a.m.Sydney Kingsford Smith
29 Apr
SYD8:30 p.m.Sydney Kingsford Smith
42h 12m
2 stops
YUL12:42 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,941

United Airlines flights from Montreal to Sydney

Our best United Airlines deals on Montreal to Sydney flight tickets
United Airlines
21 Jan
YUL2:13 p.m.Montreal Pierre Elliott Trudeau Intl
26h 52m
2 stops
SYD9:05 a.m.Sydney Kingsford Smith
3 Feb
SYD11:50 a.m.Sydney Kingsford Smith
23h 58m
2 stops
YUL7:48 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,164
United Airlines
26 Jan
YUL3:00 p.m.Montreal Pierre Elliott Trudeau Intl
26h 15m
2 stops
SYD9:15 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
22 Jan
YUL2:13 p.m.Montreal Pierre Elliott Trudeau Intl
26h 52m
2 stops
SYD9:05 a.m.Sydney Kingsford Smith
2 Feb
SYD2:00 p.m.Sydney Kingsford Smith
23h 17m
2 stops
YUL9:17 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,214

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 20 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

Sat 18/4

6:45 a.m.-11:45 a.m.

3 stops39h 00m

Sydney Kingsford Smith

Sat 2/5

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

3 stops31h 55m

C$ 1,824

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 4/3

9:00 a.m.-12:35 p.m.

3 stops35h 35m

Sydney Kingsford Smith

Wed 11/3

2:00 p.m.-7:05 a.m.

3 stops32h 05m

C$ 1,839

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

4:15 p.m.-6:35 a.m.

2 stops24h 20m

Sydney Kingsford Smith

Mon 27/4

8:30 p.m.-4:27 p.m.

2 stops57h 57m

C$ 1,844

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 3/2

8:05 a.m.-9:35 a.m.

3 stops33h 30m

Sydney Kingsford Smith

Tue 17/2

11:20 a.m.-1:53 a.m.

3 stops30h 33m

C$ 1,852

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 23/2

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

3 stops32h 25m

Sydney Kingsford Smith

Sat 28/2

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

3 stops34h 35m

C$ 1,862

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 24/3

7:30 p.m.-6:35 a.m.

2 stops44h 05m

Sydney Kingsford Smith

Sun 12/4

5:50 p.m.-3:13 p.m.

2 stops59h 23m

C$ 1,868

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 17/3

7:30 p.m.-6:35 a.m.

2 stops44h 05m

Sydney Kingsford Smith

Sun 29/3

6:50 p.m.-3:13 p.m.

2 stops59h 23m

C$ 1,870

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 8/2

6:45 a.m.-6:55 a.m.

2 stops32h 10m

Sydney Kingsford Smith

Wed 18/3

8:30 p.m.-7:05 a.m.

2 stops25h 35m

C$ 1,871

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 18/4

5:55 p.m.-11:45 a.m.

2 stops27h 50m

Sydney Kingsford Smith

Sat 2/5

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

2 stops32h 00m

C$ 1,874

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

6:45 a.m.-6:35 a.m.

2 stops55h 50m

Sydney Kingsford Smith

Sat 21/3

8:30 p.m.-7:05 a.m.

2 stops49h 35m

C$ 1,877

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

26h 05m

Direct flights

None
The fastest flight from Montreal to Sydney takes 26h 05m
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 26h 05m.

  • 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
7.9
412 reviews
Search Porter Airlines flights
WestJetPriceFrom C$ 331Free CancellationRating
7.2
3,247 reviews
Search WestJet flights
DeltaPriceFrom C$ 453Free CancellationRating
7.9
8,085 reviews
Search Delta flights
Qantas AirwaysPriceFrom C$ 1,112Free CancellationRating
7.5
973 reviews
Search Qantas Airways flights
United AirlinesPriceFrom C$ 1,520Free CancellationRating
7.4
9,188 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 1,677Free CancellationRating
7.1
10,644 reviews
Search Air Canada flights
Air New ZealandPriceFrom C$ 1,740Free CancellationRating
8.0
572 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom C$ 2,029Free CancellationRating
7.4
3,721 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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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