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Cheap flights from Montreal to Sydney from $831

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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Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
07:00 - 06:50YUL-SYD
31h 50m2 stops
Delta Logo
10:40 - 10:57SYD-YUL
40h 17m2 stops
$1,455Delta
Find Deal
Sun, 22 Feb - Sun, 8 Mar
Delta Logo
07:00 - 06:50YUL-SYD
31h 50m2 stops
Delta Logo
10:40 - 23:26SYD-YUL
28h 46m2 stops
$1,457Delta
Find Deal
Sun, 25 Jan - Sun, 8 Feb
Delta Logo
07:00 - 08:30YUL-SYD
33h 30m2 stops
Delta Logo
10:40 - 23:10SYD-YUL
28h 30m2 stops
$1,506Delta
Find Deal
Tue, 27 Jan - Sat, 28 Feb
Delta Logo
07:00 - 06:35YUL-SYD
33h 35m2 stops
Delta Logo
09:25 - 23:58SYD-YUL
28h 33m2 stops
$1,509Delta
Find Deal
Thu, 7 May - Sun, 24 May
Delta Logo
07:00 - 07:30YUL-SYD
33h 30m2 stops
Delta Logo
09:25 - 23:34SYD-YUL
28h 09m2 stops
$1,510Delta
Find Deal
Thu, 26 Mar - Mon, 13 Apr
Delta Logo
18:02 - 06:50YUL-SYD
44h 48m2 stops
Delta Logo
10:40 - 23:10SYD-YUL
28h 30m2 stops
$1,564Delta
Find Deal
Wed, 21 Jan - Fri, 13 Feb
Air Canada Logo
22:30 - 07:20YUL-SYD
42h 50m1 stop
Air Canada Logo
09:20 - 23:02SYD-YUL
27h 42m2 stops
$1,577Air Canada
Find Deal
Sat, 9 May - Mon, 17 Aug
Air Canada Logo
20:30 - 07:20YUL-SYD
44h 50m2 stops
Air Canada Logo
09:20 - 07:10SYD-YUL
35h 50m2 stops
$1,579Air Canada
Find Deal
Sat, 23 May - Wed, 27 May
Air Canada Logo
14:25 - 09:35YUL-SYD
51h 10m2 stops
Air Canada Logo
11:20 - 06:39SYD-YUL
35h 19m2 stops
$1,580Air Canada
Find Deal
Sat, 14 Feb - Wed, 18 Feb
Delta Logo
15:00 - 06:35YUL-SYD
25h 35m2 stops
Delta Logo
09:25 - 23:34SYD-YUL
52h 09m2 stops
$1,608Delta
Find Deal
Wed, 27 May - Tue, 30 Jun

Delta flights from Montreal to Sydney

Our best Delta deals on Montreal to Sydney flight tickets
Delta
31 Jan
YUL14:40Montreal Pierre Elliott Trudeau Intl
48h 10m
2 stops
SYD06:50Sydney Kingsford Smith
18 Feb
SYD10:40Sydney Kingsford Smith
28h 30m
2 stops
YUL23:10Montreal Pierre Elliott Trudeau Intl
$1,455
Find similar
Delta
25 Jan
YUL07:00Montreal Pierre Elliott Trudeau Intl
31h 50m
2 stops
SYD06:50Sydney Kingsford Smith
8 Feb
SYD10:40Sydney Kingsford Smith
28h 46m
2 stops
YUL23:26Montreal Pierre Elliott Trudeau Intl
$1,457
Find similar
Delta
27 Jan
YUL07:00Montreal Pierre Elliott Trudeau Intl
33h 30m
2 stops
SYD08:30Sydney Kingsford Smith
28 Feb
SYD10:40Sydney Kingsford Smith
28h 30m
2 stops
YUL23:10Montreal Pierre Elliott Trudeau Intl
$1,506
Find similar

Air Canada flights from Montreal to Sydney

Our best Air Canada deals on Montreal to Sydney flight tickets
Air Canada
9 May
YUL22:30Montreal Pierre Elliott Trudeau Intl
42h 50m
1 stop
SYD07:20Sydney Kingsford Smith
17 Aug
SYD09:20Sydney Kingsford Smith
27h 42m
2 stops
YUL23:02Montreal Pierre Elliott Trudeau Intl
$1,577
Find similar
Air Canada
23 May
YUL20:30Montreal Pierre Elliott Trudeau Intl
44h 50m
2 stops
SYD07:20Sydney Kingsford Smith
27 May
SYD09:20Sydney Kingsford Smith
35h 50m
2 stops
YUL07:10Montreal Pierre Elliott Trudeau Intl
$1,579
Find similar
Air Canada
14 Feb
YUL14:25Montreal Pierre Elliott Trudeau Intl
51h 10m
2 stops
SYD09:35Sydney Kingsford Smith
18 Feb
SYD11:20Sydney Kingsford Smith
35h 19m
2 stops
YUL06:39Montreal Pierre Elliott Trudeau Intl
$1,580
Find similar

momondo Fare Finder

 
Customise 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 78,305 searches. Data last updated 2 December 2025.
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

Sun 22/2

07:00-06:50

2 stops31h 50m

Sydney Kingsford Smith

Sun 8/3

10:40-10:57

2 stops40h 17m

$1,455

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 25/1

07:00-06:50

2 stops31h 50m

Sydney Kingsford Smith

Sun 8/2

10:40-23:26

2 stops28h 46m

$1,457

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 27/1

07:00-08:30

2 stops33h 30m

Sydney Kingsford Smith

Sat 28/2

10:40-23:10

2 stops28h 30m

$1,506

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 7/5

07:00-06:35

2 stops33h 35m

Sydney Kingsford Smith

Sun 24/5

09:25-23:58

2 stops28h 33m

$1,509

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 26/3

07:00-07:30

2 stops33h 30m

Sydney Kingsford Smith

Mon 13/4

09:25-23:34

2 stops28h 09m

$1,510

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 21/1

18:02-06:50

2 stops44h 48m

Sydney Kingsford Smith

Fri 13/2

10:40-23:10

2 stops28h 30m

$1,564

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

22:30-07:20

1 stop42h 50m

Sydney Kingsford Smith

Mon 17/8

09:20-23:02

2 stops27h 42m

$1,577

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 23/5

20:30-07:20

2 stops44h 50m

Sydney Kingsford Smith

Wed 27/5

09:20-07:10

2 stops35h 50m

$1,579

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 14/2

14:25-09:35

2 stops51h 10m

Sydney Kingsford Smith

Wed 18/2

11:20-06:39

2 stops35h 19m

$1,580

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 27/5

15:00-06:35

2 stops25h 35m

Sydney Kingsford Smith

Tue 30/6

09:25-23:34

2 stops52h 09m

$1,608

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

The month of September is, on average, the cheapest month to fly to Sydney from Montreal, with most prices found around $2,176. 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 $2,229.

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

Our data shows that Monday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $2,325. The most expensive day to fly to Sydney is Sunday, with ticket prices averaging around $3,377.

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

According to our data, the cheapest time of day to fly to Sydney is at midday. momondo users have found flights departing from Montreal to Sydney at midday for as low as $2,143. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $2,880 on average. Flights to Sydney from Montreal in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 $2,498 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Montreal for as low as $1,724 on momondo.

Can stopping save me money on Montreal to Sydney flights?

You could potentially save up to 23% 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 December 2025, 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 return 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

25h 50m

Direct flights

None
The fastest flight from Montreal to Sydney takes 25h 50m
There are no direct flights from Montreal to Sydney. There are no popular flight routes from Montreal to Sydney.
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  • How far is Montreal to Sydney Kingsford Smith by plane?

    A flight from Montreal to Sydney Kingsford Smith will travel around 16019.1 km. 23h 10m is a normal flight duration for this route.

  • 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 refresh 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?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Sydney Kingsford Smith Airport 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.

  • 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
Air CanadaPriceFrom $653Free cancellationRating
7.1
10,493 reviews
Search Air Canada flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Terrigal
Katoomba
Penrith
Lithgow
Leura
Manly
Bondi Beach
Coogee
Cronulla
Randwick
Charlestown
Newport
Swansea

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Montreal to Sydney for you.

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

Yes. momondo enables you to select and highlight flights to Sydney from Montreal with this policy.

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?

If you are not ready to book a flight from Montreal to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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