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Cheap flights from Montreal to Sydney from C$ 755

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 24/4. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SYD
11 Apr — 18 Apr1
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 12 March 2026.

Sat 18/412:42 p.m.
YUL
-
SYD
2 stops52h 08m
Delta
Sun 26/49:15 a.m.
SYD
-
YUL
2 stops27h 53m
Delta
Deal found 11/3C$ 1,564
Sun 19/47:00 a.m.
YUL
-
SYD
2 stops33h 50m
Delta
Mon 4/59:15 a.m.
SYD
-
YUL
2 stops27h 53m
Delta
Deal found 12/3C$ 1,565
Thu 7/57:00 a.m.
YUL
-
SYD
2 stops33h 50m
Delta
Sat 23/59:15 a.m.
SYD
-
YUL
2 stops27h 58m
Delta
Deal found 12/3C$ 1,666
Mon 30/311:23 a.m.
YUL
-
SYD
2 stops29h 37m
United Airlines
Wed 15/410:20 a.m.
SYD
-
YUL
2 stops27h 53m
United Airlines
Deal found 7/3C$ 1,749
Sun 2/86:35 p.m.
YUL
-
SYD
1 stop22h 20m
United Airlines
Wed 12/810:20 a.m.
SYD
-
YUL
1 stop35h 56m
United Airlines
Deal found 9/3C$ 1,750
Sun 15/32:13 p.m.
YUL
-
SYD
2 stops26h 52m
United Airlines
Tue 24/311:50 a.m.
SYD
-
YUL
2 stops24h 52m
United Airlines
Deal found 7/3C$ 1,752
Wed 23/99:15 a.m.
YUL
-
SYD
2 stops31h 40m
United Airlines
Wed 30/99:30 a.m.
SYD
-
YUL
2 stops24h 15m
United Airlines
Deal found 7/3C$ 1,753
Mon 7/96:35 p.m.
YUL
-
SYD
1 stop22h 20m
United Airlines
Mon 28/910:20 a.m.
SYD
-
YUL
2 stops38h 20m
United Airlines
Deal found 8/3C$ 1,762
Wed 1/49:45 a.m.
YUL
-
SYD
2 stops31h 15m
United Airlines
Sun 19/49:30 a.m.
SYD
-
YUL
2 stops28h 43m
United Airlines
Deal found 9/3C$ 1,768
Wed 10/68:30 a.m.
YUL
-
SYD
2 stops44h 40m
Multiple Airlines
Wed 17/611:45 a.m.
SYD
-
YUL
2 stops33h 53m
Multiple Airlines
Deal found 10/3C$ 1,784
Fri 31/76:35 p.m.
YUL
-
SYD
1 stop22h 20m
United Airlines
Tue 18/810:20 a.m.
SYD
-
YUL
1 stop35h 56m
United Airlines
Deal found 9/3C$ 1,787
Thu 19/36:00 a.m.
YUL
-
SYD
2 stops34h 00m
United Airlines
Mon 23/311:50 a.m.
SYD
-
YUL
2 stops24h 52m
United Airlines
Deal found 7/3C$ 1,788

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 12 March 2026.

Round-trip from

C$ 1,564

One-way from

C$ 755

Popular in

December

Cheapest in

September

Average price

C$ 2,122
Delta
  • Delta
  • 18/4-26/4
  • 4 total stops
  • 80h 01m total
  • Montreal to Sydney
Search Deals
24/4
  • 24/4
  • 3 total stops
  • 49h 25m total
  • Montreal to Sydney
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 209 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 March 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 12 March 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

Sat 18/4

6:35 p.m.-7:00 a.m.

2 stops46h 25m

Sydney Kingsford Smith

Sun 26/4

9:30 a.m.-7:45 p.m.

2 stops24h 15m

C$ 1,762

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 30/3

5:55 p.m.-8:00 a.m.

1 stop23h 05m

Sydney Kingsford Smith

Wed 15/4

9:30 a.m.-8:36 p.m.

1 stop25h 06m

C$ 2,000

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

5:55 p.m.-7:00 a.m.

1 stop23h 05m

Sydney Kingsford Smith

Tue 28/4

10:20 a.m.-10:06 p.m.

2 stops25h 46m

C$ 2,004

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 13/4

6:00 p.m.-6:55 a.m.

1 stop22h 55m

Sydney Kingsford Smith

Mon 27/4

9:30 a.m.-4:56 p.m.

1 stop21h 26m

C$ 2,004

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

9:45 a.m.-8:00 a.m.

2 stops31h 15m

Sydney Kingsford Smith

Sun 19/4

9:30 a.m.-4:56 p.m.

1 stop21h 26m

C$ 2,012

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 1/4

9:35 p.m.-7:10 a.m.

1 stop42h 35m

Sydney Kingsford Smith

Tue 14/4

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

1 stop37h 55m

C$ 2,034
Quickest round-trip

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

6:25 p.m.-7:00 a.m.

1 stop22h 35m

Sydney Kingsford Smith

Sat 19/9

9:30 a.m.-4:35 p.m.

1 stop21h 05m

C$ 2,077

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 1/7

9:15 a.m.-7:00 a.m.

2 stops31h 45m

Sydney Kingsford Smith

Fri 31/7

9:30 a.m.-10:06 p.m.

2 stops26h 36m

C$ 2,087

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 5/4

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

2 stops28h 00m

Sydney Kingsford Smith

Mon 20/4

9:15 a.m.-11:08 p.m.

2 stops27h 53m

C$ 2,114

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 1/7

11:23 a.m.-7:00 a.m.

2 stops29h 37m

Sydney Kingsford Smith

Thu 27/8

10:20 a.m.-8:16 a.m.

1 stop35h 56m

C$ 2,133

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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?

Use this chart to determine the optimal time to book a round-trip flight from Montreal to Sydney. Price data was last updated on 6 March 2026.

The best time to book flights from Montreal to Sydney is 73 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, May is the cheapest month in which you can book a flight from Montreal to Sydney (average of C$ 399). Flying from Montreal to Sydney in June is currently the most expensive (average of C$ 1,825). 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 85% 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$ 410.

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 12 March 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
610 reviews
Check prices

Crew

8.6

Entertainment

7.4

Boarding

8.2

Overall

8.0

Food

7.4

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Air New Zealand
8.0
Very good
610 reviews
Air New Zealand
8.0
Very good
610 reviews
Check prices

Crew

8.6

Entertainment

7.4

Boarding

8.2

Overall

8.0

Food

7.4

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Qantas Airways
7.5
Good
1,004 reviews
Air New Zealand
8.0
Very good
610 reviews
Check prices

Crew

8.6

Entertainment

7.4

Boarding

8.2

Overall

8.0

Food

7.4

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Qatar Airways
7.4
Good
3,740 reviews
Air New Zealand
8.0
Very good
610 reviews
Check prices

Crew

8.6

Entertainment

7.4

Boarding

8.2

Overall

8.0

Food

7.4

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
United Airlines
7.4
Good
9,419 reviews
Air New Zealand
8.0
Very good
610 reviews
Check prices

Crew

8.6

Entertainment

7.4

Boarding

8.2

Overall

8.0

Food

7.4

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.
Air Canada
7.1
Good
10,800 reviews
Air New Zealand
8.0
Very good
610 reviews
Check prices

Crew

8.6

Entertainment

7.4

Boarding

8.2

Overall

8.0

Food

7.4

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

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 9 different airlines.

  • How long is the flight from Montreal to Sydney?

    For as low as C$ 1,762, United Airlines can have you in Sydney from Montreal in 46h 25m. 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$ 274, 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$ 356 and C$ 443, 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$ 976. 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, May is the cheapest month in which you can book a flight from Montreal to Sydney (average of C$ 399). Flying from Montreal to Sydney in June is currently the most expensive (average of C$ 1,825). 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 12 March 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 9 airlines flying from Montreal to Sydney

Discover the top 9 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 12 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 274AverageC$ 449FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
WestJetCheapestC$ 356AverageC$ 549FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 443AverageC$ 866FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Fiji AirwaysCheapestC$ 972AverageC$ 985FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
Qantas AirwaysCheapestC$ 1,087AverageC$ 1,794FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapestC$ 1,487AverageC$ 2,200FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 1,608AverageC$ 2,255FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapestC$ 1,701AverageC$ 2,109FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Qatar AirwaysCheapestC$ 1,948AverageC$ 2,267FlexibilityNo 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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