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Cheap flights from Montreal to Sydney from C$ 812

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 18/1. 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.
Delta Logo
7:00 a.m. - 6:50 a.m.
YUL
-
SYD
31h 50m2 stops
Delta Logo
10:40 a.m. - 11:59 p.m.
SYD
-
YUL
29h 19m2 stops
C$ 1,325Delta
Tue, 20 Jan - Tue, 24 Feb
Delta Logo
7:00 a.m. - 8:30 a.m.
YUL
-
SYD
33h 30m2 stops
Delta Logo
10:40 a.m. - 11:25 a.m.
SYD
-
YUL
40h 45m2 stops
C$ 1,327Delta
Tue, 20 Jan - Tue, 24 Feb
Delta Logo
6:00 a.m. - 6:50 a.m.
YUL
-
SYD
32h 50m2 stops
Delta Logo
10:40 a.m. - 11:26 p.m.
SYD
-
YUL
28h 46m2 stops
C$ 1,328Delta
Tue, 20 Jan - Tue, 24 Feb
Delta Logo
2:45 p.m. - 6:50 a.m.
YUL
-
SYD
48h 05m2 stops
Delta Logo
10:40 a.m. - 11:26 p.m.
SYD
-
YUL
28h 46m2 stops
C$ 1,329Delta
Sat, 17 Jan - Sun, 8 Feb
Delta Logo
2:40 p.m. - 6:50 a.m.
YUL
-
SYD
48h 10m2 stops
Delta Logo
2:15 p.m. - 11:59 p.m.
SYD
-
YUL
25h 44m2 stops
C$ 1,375Delta
Sat, 24 Jan - Thu, 12 Feb
Delta Logo
2:40 p.m. - 6:50 a.m.
YUL
-
SYD
48h 10m2 stops
Delta Logo
10:40 a.m. - 11:10 p.m.
SYD
-
YUL
28h 30m2 stops
C$ 1,376Delta
Sat, 24 Jan - Fri, 13 Feb
Delta Logo
1:02 p.m. - 6:50 a.m.
YUL
-
SYD
49h 48m2 stops
Delta Logo
2:15 p.m. - 12:12 p.m.
SYD
-
YUL
37h 57m2 stops
C$ 1,378Delta
Sat, 17 Jan - Sat, 7 Feb
Delta Logo
6:00 a.m. - 6:50 a.m.
YUL
-
SYD
32h 50m2 stops
Delta Logo
10:40 a.m. - 11:10 p.m.
SYD
-
YUL
28h 30m2 stops
C$ 1,380Delta
Tue, 27 Jan - Sat, 28 Feb
Delta Logo
12:52 p.m. - 8:30 a.m.
YUL
-
SYD
27h 38m2 stops
Delta Logo
9:40 a.m. - 11:59 p.m.
SYD
-
YUL
29h 19m2 stops
C$ 1,423Delta
Fri, 6 Mar - Sat, 28 Mar
Delta Logo
12:52 p.m. - 8:30 a.m.
YUL
-
SYD
27h 38m2 stops
Delta Logo
9:40 a.m. - 11:40 p.m.
SYD
-
YUL
29h 00m2 stops
C$ 1,425Delta
Fri, 6 Mar - Sat, 28 Mar

Delta flights from Montreal to Sydney

Our best Delta deals on Montreal to Sydney flight tickets
Delta
20 Jan
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
31h 50m
2 stops
SYD6:50 a.m.Sydney Kingsford Smith
24 Feb
SYD10:40 a.m.Sydney Kingsford Smith
29h 19m
2 stops
YUL11:59 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,325
Find similar
Delta
2 Mar
YUL12:52 p.m.Montreal Pierre Elliott Trudeau Intl
27h 38m
2 stops
SYD8:30 a.m.Sydney Kingsford Smith
16 Mar
SYD1:15 p.m.Sydney Kingsford Smith
37h 17m
2 stops
YUL11:32 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,327
Find similar
Delta
20 Jan
YUL7:00 a.m.Montreal Pierre Elliott Trudeau Intl
33h 30m
2 stops
SYD8:30 a.m.Sydney Kingsford Smith
24 Feb
SYD10:40 a.m.Sydney Kingsford Smith
28h 46m
2 stops
YUL11:26 p.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,328
Find similar

Air Canada flights from Montreal to Sydney

Our best Air Canada deals on Montreal to Sydney flight tickets
Air Canada
23 May
YUL7:15 p.m.Montreal Pierre Elliott Trudeau Intl
46h 05m
2 stops
SYD7:20 a.m.Sydney Kingsford Smith
27 May
SYD9:20 a.m.Sydney Kingsford Smith
35h 50m
2 stops
YUL7:10 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,440
Find similar
Air Canada
23 May
YUL7:15 p.m.Montreal Pierre Elliott Trudeau Intl
46h 05m
2 stops
SYD7:20 a.m.Sydney Kingsford Smith
27 May
SYD9:20 a.m.Sydney Kingsford Smith
35h 50m
2 stops
YUL7:10 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,445
Find similar
Air Canada
22 Feb
YUL7:30 a.m.Montreal Pierre Elliott Trudeau Intl
34h 05m
1 stop
SYD9:35 a.m.Sydney Kingsford Smith
8 Mar
SYD11:20 a.m.Sydney Kingsford Smith
39h 49m
2 stops
YUL11:09 a.m.Montreal Pierre Elliott Trudeau Intl
C$ 1,529
Find similar

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 11 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

Tue 20/1

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

2 stops31h 50m

Sydney Kingsford Smith

Tue 24/2

10:40 a.m.-11:59 p.m.

2 stops29h 19m

C$ 1,325

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 20/1

7:00 a.m.-8:30 a.m.

2 stops33h 30m

Sydney Kingsford Smith

Tue 24/2

10:40 a.m.-11:25 a.m.

2 stops40h 45m

C$ 1,327

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 20/1

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

2 stops32h 50m

Sydney Kingsford Smith

Tue 24/2

10:40 a.m.-11:26 p.m.

2 stops28h 46m

C$ 1,328

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 17/1

2:45 p.m.-6:50 a.m.

2 stops48h 05m

Sydney Kingsford Smith

Sun 8/2

10:40 a.m.-11:26 p.m.

2 stops28h 46m

C$ 1,329

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 24/1

2:40 p.m.-6:50 a.m.

2 stops48h 10m

Sydney Kingsford Smith

Thu 12/2

2:15 p.m.-11:59 p.m.

2 stops25h 44m

C$ 1,375

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 24/1

2:40 p.m.-6:50 a.m.

2 stops48h 10m

Sydney Kingsford Smith

Fri 13/2

10:40 a.m.-11:10 p.m.

2 stops28h 30m

C$ 1,376

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 17/1

1:02 p.m.-6:50 a.m.

2 stops49h 48m

Sydney Kingsford Smith

Sat 7/2

2:15 p.m.-12:12 p.m.

2 stops37h 57m

C$ 1,378

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 27/1

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

2 stops32h 50m

Sydney Kingsford Smith

Sat 28/2

10:40 a.m.-11:10 p.m.

2 stops28h 30m

C$ 1,380

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Fri 6/3

12:52 p.m.-8:30 a.m.

2 stops27h 38m

Sydney Kingsford Smith

Sat 28/3

9:40 a.m.-11:59 p.m.

2 stops29h 19m

C$ 1,423

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Fri 6/3

12:52 p.m.-8:30 a.m.

2 stops27h 38m

Sydney Kingsford Smith

Sat 28/3

9:40 a.m.-11:40 p.m.

2 stops29h 00m

C$ 1,425

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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$ 2,038.

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

The cheapest day to depart from Montreal to Sydney is on a Sunday when prices can be found for as low as C$ 2,179. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around C$ 2,319.

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

The cheapest time of day to fly to Sydney is in the evening when flights can be purchased for as low as C$ 2,000. In contrast, the most expensive time of day to depart to Sydney is in the afternoon when prices are around C$ 2,283.

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$ 2,260 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$ 1,557 on momondo.

Can stopping save me money on Montreal to Sydney flights?

You could potentially save up to 25% 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 5% 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

27h 28m

Direct flights

None
The fastest flight from Montreal to Sydney takes 27h 28m
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 27h 28m.

  • 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$ 295Free CancellationRating
8.0
398 reviews
Search Porter Airlines flights
WestJetPriceFrom C$ 329Free CancellationRating
7.2
3,195 reviews
Search WestJet flights
DeltaPriceFrom C$ 450Free CancellationRating
7.9
8,007 reviews
Search Delta flights
Qantas AirwaysPriceFrom C$ 1,103Free CancellationRating
7.5
947 reviews
Search Qantas Airways flights
United AirlinesPriceFrom C$ 1,581Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
Air CanadaPriceFrom C$ 1,712Free CancellationRating
7.1
10,516 reviews
Search Air Canada flights
Air New ZealandPriceFrom C$ 1,728Free CancellationRating
8.0
552 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom C$ 2,026Free CancellationRating
7.4
3,677 reviews
Search Qatar Airways flights

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
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
Air New Zealand
Porter Airlines
Delta
WestJet
Qatar Airways
Qantas Airways