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Cheap flights from Montreal to Sydney from C$ 748

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.
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. - 7:00 a.m.
SYD
-
YUL
31h 45m
3 stops
C$ 1,776Multiple Airlines
Mon, 13 Apr - Mon, 27 Apr
Multiple Airlines Logo
9:00 a.m. - 12:35 p.m.
YUL
-
SYD
35h 35m
2 stops
Multiple Airlines Logo
2:00 p.m. - 7:10 a.m.
SYD
-
YUL
33h 10m
3 stops
C$ 1,796Multiple Airlines
Thu, 12 Feb - Thu, 26 Feb
Air Canada Logo
8:40 p.m. - 7:20 a.m.
YUL
-
SYD
44h 40m
2 stops
Air Canada Logo
9:20 a.m. - 7:47 p.m.
SYD
-
YUL
24h 27m
2 stops
C$ 1,814Air Canada
Sat, 2 May - Mon, 18 May
Air Canada Logo
8:00 a.m. - 7:20 a.m.
YUL
-
SYD
33h 20m
2 stops
Air Canada Logo
9:20 a.m. - 9:54 a.m.
SYD
-
YUL
38h 34m
2 stops
C$ 1,825Air Canada
Wed, 29 Apr - Wed, 20 May
Air Canada Logo
3:35 p.m. - 7:20 a.m.
YUL
-
SYD
25h 45m
2 stops
Air Canada Logo
7:00 a.m. - 4:58 p.m.
SYD
-
YUL
23h 58m
2 stops
C$ 1,835Air Canada
Wed, 15 Apr - Wed, 13 May
Air Canada Logo
6:20 p.m. - 2:40 p.m.
YUL
-
SYD
28h 20m
2 stops
Air Canada Logo
11:20 a.m. - 11:58 a.m.
SYD
-
YUL
40h 38m
2 stops
C$ 1,843Air Canada
Mon, 9 Feb - Mon, 2 Mar
Air Canada Logo
4:00 p.m. - 7:20 a.m.
YUL
-
SYD
25h 20m
2 stops
Air Canada Logo
7:00 a.m. - 4:58 p.m.
SYD
-
YUL
23h 58m
2 stops
C$ 1,846Air Canada
Mon, 13 Apr - Wed, 13 May
Air Canada Logo
6:20 p.m. - 2:40 p.m.
YUL
-
SYD
28h 20m
2 stops
Air Canada Logo
11:20 a.m. - 8:22 a.m.
SYD
-
YUL
37h 02m
2 stops
C$ 1,854Air Canada
Mon, 9 Feb - Wed, 4 Mar
Air Canada Logo
1:25 p.m. - 7:20 a.m.
YUL
-
SYD
27h 55m
1 stop
Air Canada Logo
9:20 a.m. - 12:02 p.m.
SYD
-
YUL
40h 42m
2 stops
C$ 1,864Air Canada
Thu, 9 Apr - Mon, 27 Apr
Air Canada Logo
8:30 a.m. - 7:20 a.m.
YUL
-
SYD
32h 50m
1 stop
Air Canada Logo
9:20 a.m. - 12:40 a.m.
SYD
-
YUL
29h 20m
1 stop
C$ 1,873Air Canada
Wed, 15 Apr - Tue, 12 May

Qatar Airways flights from Montreal to Sydney

Our best Qatar Airways deals on Montreal to Sydney flight tickets
Qatar Airways
22 Feb
YUL8:50 p.m.Montreal Pierre Elliott Trudeau Intl
42h 00m
1 stop
SYD6:50 a.m.Sydney Kingsford Smith
9 Mar
SYD3:50 p.m.Sydney Kingsford Smith
38h 15m
1 stop
YUL3:05 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,917
Qatar Airways
27 Apr
YUL8:55 p.m.Montreal Pierre Elliott Trudeau Intl
30h 15m
1 stop
SYD5:10 p.m.Sydney Kingsford Smith
30 Apr
SYD2:50 p.m.Sydney Kingsford Smith
37h 55m
1 stop
YUL2:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,932

Qantas Airways flights from Montreal to Sydney

Our best Qantas Airways deals on Montreal to Sydney flight tickets
Qantas Airways
27 Apr
YUL7:15 a.m.Montreal Pierre Elliott Trudeau Intl
33h 20m
2 stops
SYD6:35 a.m.Sydney Kingsford Smith
30 Apr
SYD8:30 p.m.Sydney Kingsford Smith
41h 15m
2 stops
YUL11:45 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,935
Qantas Airways
22 Feb
YUL3:45 p.m.Montreal Pierre Elliott Trudeau Intl
49h 15m
2 stops
SYD9:00 a.m.Sydney Kingsford Smith
9 Mar
SYD8:30 p.m.Sydney Kingsford Smith
25h 35m
2 stops
YUL7:05 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,955
Qantas Airways
7 Feb
YUL3:50 p.m.Montreal Pierre Elliott Trudeau Intl
49h 10m
2 stops
SYD9:00 a.m.Sydney Kingsford Smith
28 Feb
SYD11:20 a.m.Sydney Kingsford Smith
43h 44m
2 stops
YUL3:04 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 2,080

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 27 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

Mon 13/4

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

3 stops39h 00m

Sydney Kingsford Smith

Mon 27/4

1:15 p.m.-7:00 a.m.

3 stops31h 45m

C$ 1,776

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 12/2

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

2 stops35h 35m

Sydney Kingsford Smith

Thu 26/2

2:00 p.m.-7:10 a.m.

3 stops33h 10m

C$ 1,796

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 2/5

8:40 p.m.-7:20 a.m.

2 stops44h 40m

Sydney Kingsford Smith

Mon 18/5

9:20 a.m.-7:47 p.m.

2 stops24h 27m

C$ 1,814

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

8:00 a.m.-7:20 a.m.

2 stops33h 20m

Sydney Kingsford Smith

Wed 20/5

9:20 a.m.-9:54 a.m.

2 stops38h 34m

C$ 1,825

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

3:35 p.m.-7:20 a.m.

2 stops25h 45m

Sydney Kingsford Smith

Wed 13/5

7:00 a.m.-4:58 p.m.

2 stops23h 58m

C$ 1,835

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 9/2

6:20 p.m.-2:40 p.m.

2 stops28h 20m

Sydney Kingsford Smith

Mon 2/3

11:20 a.m.-11:58 a.m.

2 stops40h 38m

C$ 1,843

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

4:00 p.m.-7:20 a.m.

2 stops25h 20m

Sydney Kingsford Smith

Wed 13/5

7:00 a.m.-4:58 p.m.

2 stops23h 58m

C$ 1,846

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 9/2

6:20 p.m.-2:40 p.m.

2 stops28h 20m

Sydney Kingsford Smith

Wed 4/3

11:20 a.m.-8:22 a.m.

2 stops37h 02m

C$ 1,854

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

1:25 p.m.-7:20 a.m.

1 stop27h 55m

Sydney Kingsford Smith

Mon 27/4

9:20 a.m.-12:02 p.m.

2 stops40h 42m

C$ 1,864

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

8:30 a.m.-7:20 a.m.

1 stop32h 50m

Sydney Kingsford Smith

Tue 12/5

9:20 a.m.-12:40 a.m.

1 stop29h 20m

C$ 1,873

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 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$ 2,021.

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$ 2,245 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$ 1,546 on momondo.

Can stopping save me money on Montreal to Sydney flights?

You could potentially save up to 1% on your flight if you consider stops on a Montreal to Sydney flight.

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 15m

Direct flights

None
The fastest flight from Montreal to Sydney takes 26h 15m
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 15m.

  • 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$ 293Free CancellationRating
7.9
412 reviews
Search Porter Airlines flights
WestJetPriceFrom C$ 327Free CancellationRating
7.2
3,251 reviews
Search WestJet flights
DeltaPriceFrom C$ 447Free CancellationRating
7.9
8,121 reviews
Search Delta flights
Fiji AirwaysPriceFrom C$ 980Free CancellationRating
8.0
222 reviews
Search Fiji Airways flights
Qantas AirwaysPriceFrom C$ 1,096Free CancellationRating
7.5
978 reviews
Search Qantas Airways flights
United AirlinesPriceFrom C$ 1,500Free CancellationRating
7.4
9,206 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 1,655Free CancellationRating
7.1
10,664 reviews
Search Air Canada flights
Air New ZealandPriceFrom C$ 1,716Free CancellationRating
8.0
577 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom C$ 2,001Free CancellationRating
7.4
3,731 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
Fiji Airways