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Cheap flights from Montreal to Sydney from C$ 837

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 11/5. 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
7:15 a.m. - 11:50 a.m.
YUL
-
SYD
38h 35m
3 stops
Multiple Airlines Logo
1:15 p.m. - 7:05 a.m.
SYD
-
YUL
31h 50m
3 stops
C$ 1,551Multiple Airlines
Wed, 29 Apr - Tue, 12 May
Multiple Airlines Logo
6:45 a.m. - 11:50 a.m.
YUL
-
SYD
39h 05m
3 stops
Multiple Airlines Logo
1:15 p.m. - 7:05 a.m.
SYD
-
YUL
31h 50m
3 stops
C$ 1,693Multiple Airlines
Sun, 3 May - Tue, 12 May
Delta Logo
6:00 a.m. - 6:50 a.m.
YUL
-
SYD
34h 50m
2 stops
Delta Logo
9:15 a.m. - 11:55 p.m.
SYD
-
YUL
28h 40m
2 stops
C$ 1,763Delta
Tue, 21 Jul - Mon, 3 Aug
Delta Logo
6:00 a.m. - 6:50 a.m.
YUL
-
SYD
34h 50m
2 stops
Delta Logo
9:15 a.m. - 11:57 p.m.
SYD
-
YUL
28h 42m
2 stops
C$ 1,767Delta
Tue, 5 May - Tue, 12 May
Delta Logo
7:00 a.m. - 6:50 a.m.
YUL
-
SYD
33h 50m
2 stops
Delta Logo
9:15 a.m. - 11:35 a.m.
SYD
-
YUL
40h 20m
2 stops
C$ 1,768Delta
Sun, 3 May - Tue, 12 May
Delta Logo
7:00 a.m. - 6:50 a.m.
YUL
-
SYD
33h 50m
2 stops
Delta Logo
9:15 a.m. - 11:41 p.m.
SYD
-
YUL
28h 26m
2 stops
C$ 1,775Delta
Wed, 29 Apr - Tue, 12 May
Delta Logo
6:00 a.m. - 6:50 a.m.
YUL
-
SYD
34h 50m
2 stops
Delta Logo
9:15 a.m. - 11:28 p.m.
SYD
-
YUL
28h 13m
2 stops
C$ 1,776Delta
Sun, 24 May - Sun, 7 Jun
Delta Logo
12:50 p.m. - 6:50 a.m.
YUL
-
SYD
28h 00m
2 stops
Delta Logo
9:15 a.m. - 11:35 a.m.
SYD
-
YUL
40h 20m
2 stops
C$ 1,778Delta
Wed, 29 Apr - Tue, 12 May
Air Canada Logo
9:20 p.m. - 7:20 a.m.
YUL
-
SYD
44h 00m
2 stops
Air Canada Logo
9:20 a.m. - 12:39 a.m.
SYD
-
YUL
29h 19m
1 stop
C$ 1,808Air Canada
Mon, 7 Sep - Wed, 30 Sep
Air Canada Logo
9:20 p.m. - 7:20 a.m.
YUL
-
SYD
44h 00m
2 stops
Air Canada Logo
9:20 a.m. - 12:39 a.m.
SYD
-
YUL
29h 19m
1 stop
C$ 1,810Air Canada
Mon, 7 Sep - Wed, 30 Sep

Delta flights from Montreal to Sydney

Our best Delta deals on Montreal to Sydney flight tickets
Delta
22 Apr
YUL12:50 p.m.Montreal Pierre Elliott Trudeau Intl
28h 00m
2 stops
SYD6:50 a.m.Sydney Kingsford Smith
6 May
SYD9:15 a.m.Sydney Kingsford Smith
28h 11m
2 stops
YUL11:26 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,763
Delta
5 May
YUL6:00 a.m.Montreal Pierre Elliott Trudeau Intl
34h 50m
2 stops
SYD6:50 a.m.Sydney Kingsford Smith
12 May
SYD9:15 a.m.Sydney Kingsford Smith
28h 42m
2 stops
YUL11:57 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,767
Delta
3 May
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
33h 50m
2 stops
SYD6:50 a.m.Sydney Kingsford Smith
12 May
SYD9:15 a.m.Sydney Kingsford Smith
40h 20m
2 stops
YUL11:35 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,768

United Airlines flights from Montreal to Sydney

Our best United Airlines deals on Montreal to Sydney flight tickets
United Airlines
13 Apr
YUL3:25 p.m.Montreal Pierre Elliott Trudeau Intl
25h 30m
2 stops
SYD6:55 a.m.Sydney Kingsford Smith
20 Apr
SYD10:20 a.m.Sydney Kingsford Smith
38h 20m
2 stops
YUL10:40 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,985
United Airlines
18 Apr
YUL6:35 p.m.Montreal Pierre Elliott Trudeau Intl
46h 20m
2 stops
SYD6:55 a.m.Sydney Kingsford Smith
26 Apr
SYD9:30 a.m.Sydney Kingsford Smith
28h 43m
2 stops
YUL12:13 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,988
United Airlines
13 Apr
YUL3:25 p.m.Montreal Pierre Elliott Trudeau Intl
25h 30m
2 stops
SYD6:55 a.m.Sydney Kingsford Smith
20 Apr
SYD9:30 a.m.Sydney Kingsford Smith
39h 10m
2 stops
YUL10:40 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,989

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 10 April 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

Cheapest round-trip

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

7:15 a.m.-11:50 a.m.

3 stops38h 35m

Sydney Kingsford Smith

Tue 12/5

1:15 p.m.-7:05 a.m.

3 stops31h 50m

C$ 1,551

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

6:45 a.m.-11:50 a.m.

3 stops39h 05m

Sydney Kingsford Smith

Tue 12/5

1:15 p.m.-7:05 a.m.

3 stops31h 50m

C$ 1,693

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 21/7

6:00 a.m.-6:50 a.m.

2 stops34h 50m

Sydney Kingsford Smith

Mon 3/8

9:15 a.m.-11:55 p.m.

2 stops28h 40m

C$ 1,763

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

6:00 a.m.-6:50 a.m.

2 stops34h 50m

Sydney Kingsford Smith

Tue 12/5

9:15 a.m.-11:57 p.m.

2 stops28h 42m

C$ 1,767

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 3/5

7:00 a.m.-6:50 a.m.

2 stops33h 50m

Sydney Kingsford Smith

Tue 12/5

9:15 a.m.-11:35 a.m.

2 stops40h 20m

C$ 1,768
Quickest round-trip

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

7:00 a.m.-6:50 a.m.

2 stops33h 50m

Sydney Kingsford Smith

Tue 12/5

9:15 a.m.-11:41 p.m.

2 stops28h 26m

C$ 1,775

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 24/5

6:00 a.m.-6:50 a.m.

2 stops34h 50m

Sydney Kingsford Smith

Sun 7/6

9:15 a.m.-11:28 p.m.

2 stops28h 13m

C$ 1,776

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 29/4

12:50 p.m.-6:50 a.m.

2 stops28h 00m

Sydney Kingsford Smith

Tue 12/5

9:15 a.m.-11:35 a.m.

2 stops40h 20m

C$ 1,778

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

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

2 stops44h 00m

Sydney Kingsford Smith

Wed 30/9

9:20 a.m.-12:39 a.m.

1 stop29h 19m

C$ 1,808

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

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

2 stops44h 00m

Sydney Kingsford Smith

Wed 30/9

9:20 a.m.-12:39 a.m.

1 stop29h 19m

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 February is also cheap. Prices for this month can be found on momondo for an average of C$ 2,072.

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$ 2,289 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$ 1,837 on momondo.

Can stopping save me money on Montreal to Sydney flights?

You could potentially save up to 19% 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 April 2026, prices for Montreal to Sydney flights are approximately 7% more expensive 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 50m

Direct flights

None
The fastest flight from Montreal to Sydney takes 23h 50m
There are no direct flights from Montreal to Sydney. There are no popular flight routes from Montreal to Sydney.
Search flight deals

Frequently asked questions about flying from Montreal to Sydney

  • 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 50m.

  • 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$ 279Free CancellationRating
8.0
432 reviews
Search Porter Airlines flights
WestJetPriceFrom C$ 363Free CancellationRating
7.2
3,320 reviews
Search WestJet flights
DeltaPriceFrom C$ 451Free CancellationRating
7.9
8,404 reviews
Search Delta flights
Fiji AirwaysPriceFrom C$ 988Free CancellationRating
8.1
239 reviews
Search Fiji Airways flights
Qantas AirwaysPriceFrom C$ 1,108Free CancellationRating
7.5
1,018 reviews
Search Qantas Airways flights
United AirlinesPriceFrom C$ 1,515Free CancellationRating
7.4
9,563 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 1,629Free CancellationRating
7.1
10,915 reviews
Search Air Canada flights
Air New ZealandPriceFrom C$ 1,795Free CancellationRating
8.0
627 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom C$ 1,985Free CancellationRating
7.4
3,727 reviews
Search Qatar Airways flights

Travelling to a place near Sydney?

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

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
Qatar Airways
Qantas Airways
Porter Airlines
WestJet
Fiji Airways