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Cheap flights from Montreal to Sydney from C$ 900

YMQ — SYD
10 Oct — 17 Oct1
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

Mon 14/99:45 a.m. -
2 stops33h 40m
Mon 19/109:45 p.m. -
2 stops41h 54m
Deal found 6/9C$ 1,823
Wed 21/107:15 a.m. -
3 stops38h 35m
Wed 28/102:00 p.m. -
3 stops40h 50m
Deal found 5/9C$ 1,827
Tue 22/99:45 a.m. -
2 stops33h 40m
Tue 13/109:45 p.m. -
2 stops41h 54m
Deal found 9/9C$ 1,835
Tue 22/99:45 a.m. -
2 stops43h 25m
Tue 6/109:45 p.m. -
2 stops34h 45m
Deal found 6/9C$ 1,867
Tue 22/96:10 a.m. -
2 stops47h 00m
Tue 24/1112:25 p.m. -
2 stops48h 52m
Deal found 9/9C$ 1,872
Fri 11/91:10 p.m. -
2 stops40h 00m
Wed 7/109:45 p.m. -
2 stops41h 54m
Deal found 9/9C$ 1,897
Sun 8/118:00 a.m. -
2 stops46h 05m
Sun 22/112:00 p.m. -
3 stops36h 25m
Deal found 6/9C$ 1,925
Sun 1/1110:10 a.m. -
3 stops43h 55m
Wed 11/116:00 a.m. -
3 stops45h 25m
Deal found 5/9C$ 1,930

Find flight deals from Montreal to Sydney

Round-trip from

C$ 1,827

One-way from

C$ 900

Popular in

December

Cheapest in

September

Average price

C$ 2,036
21/10-28/10
  • 21/10-28/10
  • 6 total stops
  • 79h 25m total
  • Montreal to Sydney
Search Deals
1/12-31/12
  • 1/12-31/12
  • 2 total stops
  • 31h 40m total
  • Montreal to Sydney
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Montreal to Sydney that are best for you.

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Route

Depart

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Price

Cheapest round-trip

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 16/9

7:15 a.m.-7:30 a.m.

2 stops34h 15m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,004
Quickest round-trip

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 24/2

12:45 p.m.-8:30 a.m.

2 stops27h 45m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,146

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 11/1

6:15 p.m.-6:50 a.m.

2 stops44h 35m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,205

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 16/1

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

2 stops48h 05m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,205

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 9/1

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

2 stops48h 05m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,205

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Fri 8/1

4:55 p.m.-8:30 a.m.

2 stops47h 35m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,426

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 2/1

10:10 a.m.-6:30 a.m.

2 stops52h 20m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,657

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 16/1

9:05 p.m.-8:05 p.m.

3 stops55h 00m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-9:00 a.m.

Nonstop0h 00m

C$ 1,663

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 24/1

9:05 p.m.-7:20 p.m.

1 stop30h 15m

Sydney Kingsford Smith

Fri 5/2

7:30 p.m.-2:05 p.m.

2 stops34h 35m

C$ 1,883

MontrealSydney

YUL Montreal Pierre Elliott Trudeau Intl - SYD Sydney Kingsford Smith

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 4/3

12:45 p.m.-8:30 a.m.

2 stops27h 45m

Sydney Kingsford Smith

Thu 1/4

10:15 a.m.-11:35 p.m.

2 stops28h 20m

C$ 2,103

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 20 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

Cheapflights Insights

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

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$ 1,722). Flying from Montreal to Sydney in December is currently the most expensive (average of C$ 2,606). 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?

Airfare is below average for this route at the moment.
Montreal to Sydney flights typically cost between C$ 1,856 and C$ 2,410 in October.
The cheapest round-trip price found within the last 5 days was C$ 1,827 on Multiple Airlines (21 Oct-28 Oct).

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

Vancouver (YVR) – chosen by Cheapflights users on 86% of one-stop itineraries from Montreal to Sydney on Cheapflights.

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

Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 471.

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

Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 8h 51m.

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

Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 46m.

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

The best time to book flights from Montreal to Sydney is 17 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.

Reviews of airlines servicing Sydney

Get a feel of what it's like to fly with Air New Zealand,Qatar Airways, andUnited Airlines 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
669 reviews
Check prices

Overall

8.0

Entertainment

7.4

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed
Air New Zealand
8.0
Very good
669 reviews
Air New Zealand
8.0
Very good
669 reviews
Check prices

Overall

8.0

Entertainment

7.4

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed
Qatar Airways
7.4
Good
3,734 reviews
Air New Zealand
8.0
Very good
669 reviews
Check prices

Overall

8.0

Entertainment

7.4

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed
United Airlines
7.4
Good
10,194 reviews
Air New Zealand
8.0
Very good
669 reviews
Check prices

Overall

8.0

Entertainment

7.4

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed
Air Canada
7.1
Good
11,608 reviews
Air New Zealand
8.0
Very good
669 reviews
Check prices

Overall

8.0

Entertainment

7.4

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.5

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2026

FLL - IAH

All good. Problem was delay caused by weather in Houston creating anxiety about my AirNZ connection. Nothing that United could do about that, and in fairness th captain kept us very well informed

Related info for your journey

  • 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 6 different airlines.

  • How long is the flight from Montreal to Sydney?

    For as low as C$ 2,103, Qatar Airways can have you in Sydney from Montreal in 27h 45m. The distance from Montreal to Sydney is about 16011 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at C$ 500, Delta will fly you from Montreal to Sydney and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Qantas Airways and United Airlines - these airlines can fly you to your destination from C$ 1,171 and C$ 1,454, respectively. These flights start at 78% 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$ 991. However, be on the lookout for offers from Air Canada and Air New Zealand, 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$ 1,722). Flying from Montreal to Sydney in December is currently the most expensive (average of C$ 2,606). 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
Parramatta

Browse thousands of different options on Cheapflights for your next trip

Fly from Montreal to Sydney on these airlines

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 6 airlines flying from Montreal to Sydney

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 500AverageC$ 1,328FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Qantas AirwaysCheapestC$ 1,171AverageC$ 1,718FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapestC$ 1,454AverageC$ 2,256FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 1,639AverageC$ 2,388FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qatar AirwaysCheapestC$ 1,773AverageC$ 2,083FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Air New ZealandCheapestC$ 1,788AverageC$ 2,387FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights

Fly with Cheapflights

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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