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Cheap flights from Montreal to Sydney from C$ 835

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SYD
29 May — 5 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Montreal to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Montreal to Sydney
Explore the most affordable flight options available from Montreal to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2026.

Mon 20/77:00 a.m.
YUL
-
SYD
2 stops33h 50m
Delta
Tue 4/89:15 a.m.
SYD
-
YUL
2 stops28h 40m
Delta
Deal found 29/4C$ 1,446
Thu 23/712:44 p.m.
YUL
-
SYD
2 stops28h 06m
Delta
Mon 10/89:15 a.m.
SYD
-
YUL
2 stops27h 55m
Delta
Deal found 29/4C$ 1,516
Sun 6/97:15 a.m.
YUL
-
SYD
3 stops38h 35m
Multiple Airlines
Sun 20/91:15 p.m.
SYD
-
YUL
3 stops31h 50m
Multiple Airlines
Deal found 26/4C$ 1,545
Thu 30/712:44 p.m.
YUL
-
SYD
2 stops28h 06m
Delta
Thu 13/89:15 a.m.
SYD
-
YUL
2 stops27h 55m
Delta
Deal found 29/4C$ 1,586
Sat 2/56:00 a.m.
YUL
-
SYD
2 stops34h 50m
Delta
Sat 9/59:15 a.m.
SYD
-
YUL
2 stops28h 42m
Delta
Deal found 28/4C$ 1,590
Sun 3/57:00 a.m.
YUL
-
SYD
2 stops33h 50m
Delta
Tue 19/59:15 a.m.
SYD
-
YUL
2 stops27h 58m
Delta
Deal found 24/4C$ 1,707
Mon 20/76:47 p.m.
YUL
-
SYD
2 stops46h 03m
Delta
Sun 9/89:15 a.m.
SYD
-
YUL
2 stops52h 41m
Delta
Deal found 24/4C$ 1,709
Sun 3/512:55 p.m.
YUL
-
SYD
2 stops51h 55m
Delta
Sun 17/59:15 a.m.
SYD
-
YUL
2 stops40h 44m
Delta
Deal found 27/4C$ 1,710
Sun 3/57:00 a.m.
YUL
-
SYD
2 stops33h 50m
Delta
Mon 18/59:15 a.m.
SYD
-
YUL
2 stops40h 20m
Delta
Deal found 28/4C$ 1,714
Thu 23/712:44 p.m.
YUL
-
SYD
2 stops28h 06m
Delta
Wed 5/89:15 a.m.
SYD
-
YUL
2 stops28h 10m
Delta
Deal found 24/4C$ 1,776
Thu 7/57:00 a.m.
YUL
-
SYD
2 stops33h 50m
Delta
Tue 19/59:15 a.m.
SYD
-
YUL
2 stops28h 42m
Delta
Deal found 27/4C$ 1,777
Mon 24/88:30 a.m.
YUL
-
SYD
2 stops34h 55m
ANA
Sun 6/911:45 a.m.
SYD
-
YUL
2 stops43h 45m
ANA
Deal found 26/4C$ 1,785

Find flight deals from Montreal to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 April 2026.

Round-trip from

C$ 1,446

One-way from

C$ 835

Popular in

December

Cheapest in

September

Average price

C$ 2,187
Delta
  • Delta
  • 10/5-25/5
  • 4 total stops
  • 63h 32m total
  • Montreal to Sydney
Search Deals
18/10
  • 18/10
  • 3 total stops
  • 39h 05m total
  • Montreal to Sydney
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights 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, Cheapflights users made 629,999 searches. Data last updated 29 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
Quickest round-trip

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 13/5

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

2 stops33h 50m

Sydney Kingsford Smith

Wed 27/5

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

2 stops28h 42m

C$ 1,710

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

12:49 p.m.-6:50 a.m.

2 stops52h 01m

Sydney Kingsford Smith

Tue 19/5

9:15 a.m.-11:13 p.m.

2 stops27h 58m

C$ 1,710

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 28/5

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

2 stops34h 50m

Sydney Kingsford Smith

Thu 4/6

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

2 stops28h 42m

C$ 1,849

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 21/7

6:47 p.m.-6:50 a.m.

2 stops46h 03m

Sydney Kingsford Smith

Mon 3/8

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

2 stops52h 40m

C$ 1,923

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 2/6

12:49 p.m.-6:50 a.m.

2 stops28h 01m

Sydney Kingsford Smith

Tue 23/6

9:15 a.m.-4:17 p.m.

2 stops45h 02m

C$ 2,117

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 21/5

5:10 p.m.-5:30 p.m.

2 stops34h 20m

Sydney Kingsford Smith

Sat 13/6

11:00 a.m.-4:10 p.m.

2 stops43h 10m

C$ 2,169

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 4/6

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

3 stops33h 50m

Sydney Kingsford Smith

Tue 14/7

5:10 p.m.-11:43 a.m.

3 stops32h 33m

C$ 2,184

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Fri 4/9

9:35 p.m.-6:10 a.m.

1 stop42h 35m

Sydney Kingsford Smith

Sun 27/9

8:45 p.m.-2:45 p.m.

1 stop32h 00m

C$ 2,188

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 7/9

9:35 p.m.-6:10 a.m.

1 stop42h 35m

Sydney Kingsford Smith

Wed 30/9

8:15 p.m.-2:45 p.m.

2 stops56h 30m

C$ 2,214

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 14/5

5:10 p.m.-5:30 p.m.

2 stops34h 20m

Sydney Kingsford Smith

Thu 28/5

8:45 p.m.-4:10 p.m.

1 stop33h 25m

C$ 2,248

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Montreal to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Montreal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montreal to Sydney

How far ahead should I book a flight from Montreal to Sydney?

The best time to book flights from Montreal to Sydney is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Montreal to Sydney?

Currently, February is the cheapest month in which you can book a flight from Montreal to Sydney (average of C$ 276). Flying from Montreal to Sydney in January is currently the most expensive (average of C$ 600). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Montreal to Sydney?

What’s the top layover airport for flights from Montreal to Sydney?

Share of one-stop round-trip flights from Montreal to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.

Vancouver (YVR) – chosen by Cheapflights users on 84% of one-stop itineraries from Montreal to Sydney on Cheapflights.

What’s the cheapest layover airport for flights from Montreal to Sydney?

Average round-trip fare for 1-stop flights from Montreal to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 413.

What’s the fastest layover option from Montreal to Sydney?

Shortest average travel time for 1-stop one-way flights from Montreal to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 8h 52m.

Which airport typically offers the quickest layover for flights from Montreal to Sydney?

Average layover duration for 1-stop one-way flights from Montreal to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 49m.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 29 April 2026.
Get a feel of what it's like to fly with Air New Zealand,Qantas Airways, andQatar Airways from Montreal to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very good
638 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air New Zealand
8.0
Very good
638 reviews
Air New Zealand
8.0
Very good
638 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Qantas Airways
7.5
Good
1,028 reviews
Air New Zealand
8.0
Very good
638 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Qatar Airways
7.4
Good
3,724 reviews
Air New Zealand
8.0
Very good
638 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
United Airlines
7.4
Good
9,677 reviews
Air New Zealand
8.0
Very good
638 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding
Air Canada
7.1
Good
10,982 reviews
Air New Zealand
8.0
Very good
638 reviews
Check prices

Entertainment

7.4

Crew

8.5

Comfort

7.9

Food

7.4

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2026

SIN - AKL

We were stuck on tarmac for an hour after boarding

Related info for your journey

Find useful and relevant information for your journey from Montreal to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sydney from Montreal?

    If you book a flight to Sydney from Montreal, you will be flying to Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 7.5 km from the centre of Sydney. There are 0 flights from Montreal to Kingsford Smith per day from 8 different airlines.

  • How long is the flight from Montreal to Sydney?

    For as low as C$ 1,710, Delta can have you in Sydney from Montreal in 33h 50m. The distance from Montreal to Sydney is about 16011 km.

  • What are the cheapest airlines flying from Montreal to Sydney round-trip?

    Currently priced at C$ 276, Porter Airlines will fly you from Montreal to Sydney and back. In addition to Porter Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from WestJet and Delta - these airlines can fly you to your destination from C$ 359 and C$ 495, respectively. These flights start at 87% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Montreal to Sydney one-way?

    The cheapest airline one-way is Qatar Airways, with whom users have recently found tickets for as low as C$ 982. However, be on the lookout for offers from Air Canada and United Airlines, as they are both options that can get you from Montreal to Sydney for a low price.

  • Can I find deals for flights from Montreal to Sydney that include hotel bookings?

    Yes. In addition to deals on Montreal to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Sydney.

  • Can I find deals for business class flights from Montreal to Sydney?

    Yes. Cheapflights offers flight deals from Montreal to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montreal to Sydney?

    Currently, February is the cheapest month in which you can book a flight from Montreal to Sydney (average of C$ 276). Flying from Montreal to Sydney in January is currently the most expensive (average of C$ 600). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Sydney?

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

Browse thousands of different options on Cheapflights for your next trip

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Fly from Montreal to Sydney on these airlines

Choose from the following airlines for your flight from Montreal to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 29 April 2026.
Air Canada flights from Montreal to Sydney Kingsford Smith
United Airlines flights from Montreal to Sydney Kingsford Smith
Air New Zealand flights from Montreal to Sydney Kingsford Smith

Top 8 airlines flying from Montreal to Sydney

Discover the top 8 airlines that operate flights from Montreal to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 29 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 276AverageC$ 451FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 359AverageC$ 480FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 495AverageC$ 1,289FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Qantas AirwaysCheapestC$ 1,094AverageC$ 1,703FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapestC$ 1,496AverageC$ 2,232FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 1,598AverageC$ 2,300FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapestC$ 1,772AverageC$ 2,280FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Qatar AirwaysCheapestC$ 1,960AverageC$ 2,147FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Montreal to Sydney?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to Sydney. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Montreal to Sydney?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from Montreal.

Can Cheapflights find flights from Montreal to Sydney with no change fees?

Need flexible booking options for your flight to Sydney from Montreal? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Montreal to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Montreal today and book when prices fit your budget.

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