How long is the flight from Montreal to Sydney?

For as low as C$ 2,166, United Airlines can have you in Sydney from Montreal in 32h. 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$ 297, 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$ 330 and C$ 452, respectively. These flights start at 86% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 mm per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

What are the most popular airlines that fly from Montreal to Sydney?

When booking a flight from Montreal to Sydney, you may want to consider flying on Air Canada, Delta or Air New Zealand as they are the most popular for this route.

What is the cheapest day to fly round-trip from Montreal to Sydney?

Users have found that leaving on a Saturday can be a cost-effective option. It’s possible to save up to 6% on your flight compared to booking on days when demand is much higher.

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

Users have found that booking a flight from Montreal to Sydney at least 49 days early can save you up to 94% on average compared to booking a flight this week. If booking 49 days before your flight isn’t an option for you, users have found flights from Montreal to Sydney for as little as C$ 2,140 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 2,511 for flights departing within the next 3 days.

What is the cheapest month to fly from Montreal to Sydney?

The best pricing can be found in the month of April. Prices to Sydney from Montreal average C$ 2,261. You can even find prices in April for less than C$ 2,261, as users have found deals to Sydney from as low as C$ 995. The month of December appears to be one of the more expensive times to travel to Sydney from Montreal. Flying in the targeted month can save you up to 30%.

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.

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.

C$ 757+ Flights from Montreal to Sydney

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

Airfare is typical for this route at the moment. Montreal to Sydney flights typically cost between C$ 1,828 and C$ 2,300 in October. The cheapest round-trip price found within the last 3 days was C$ 2,036 on Multiple Airlines (25 Oct-1 Nov).

Cheapflights Tip: The best prices from Montreal to Sydney Kingsford Smith are usually found in April or March, booked 48 days in advance, depart on a Sunday or Wednesday and return on a Friday

Cheap flight deals from Montreal to Sydney

Round-trip from	C$ 2,036
One-way from	C$ 757
Popular in	December
Cheapest in	April
Average price	C$ 2,033

25/10-1/11
3 total stops
78h 55m total
Montreal to Sydney

Search Deals

22/10
3 total stops
58h 20m total
Montreal to Sydney

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (C$ 424 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 89 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Montreal to Sydney

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 11 September 2025.

Sat 25/109:45 p.m.YUL - SYD

1 stop43h 50mMultiple Airlines

Sat 1/119:55 p.m.SYD - YUL

2 stops35h 05mMultiple Airlines

Deal found 10/9C$ 2,036

Tue 28/101:20 p.m.YUL - SYD

2 stops28h 15mAir Canada

Mon 10/1111:20 a.m.SYD - YUL

3 stops25h 24mAir Canada

Deal found 8/9C$ 2,041

Sat 25/109:45 p.m.YUL - SYD

1 stop43h 50mAir Canada

Sat 1/1110:20 a.m.SYD - YUL

1 stop23h 59mAir Canada

Deal found 10/9C$ 2,043

Mon 10/1111:30 a.m.YUL - SYD

2 stops30h 05mAir Canada

Tue 18/1111:20 a.m.SYD - YUL

3 stops25h 24mAir Canada

Deal found 9/9C$ 2,044

Tue 23/96:45 a.m.YUL - SYD

2 stops34h 20mMultiple Airlines

Tue 30/99:10 a.m.SYD - YUL

2 stops29h 27mMultiple Airlines

Deal found 11/9C$ 2,061

Fri 19/96:45 a.m.YUL - SYD

2 stops34h 20mMultiple Airlines

Fri 24/1010:10 a.m.SYD - YUL

2 stops29h 27mMultiple Airlines

Deal found 11/9C$ 2,072

Mon 3/118:50 a.m.YUL - SYD

2 stops32h 45mAir Canada

Mon 24/1111:20 a.m.SYD - YUL

2 stops23h 54mAir Canada

Deal found 11/9C$ 2,073

Sat 25/107:15 p.m.YUL - SYD

2 stops46h 20mAir Canada

Wed 19/1111:20 a.m.SYD - YUL

2 stops40h 49mAir Canada

Deal found 11/9C$ 2,074

Wed 10/99:40 a.m.YUL - SYD

2 stops31h 40mAir Canada

Wed 17/99:20 a.m.SYD - YUL

2 stops24h 07mAir Canada

Deal found 9/9C$ 2,077

Best flights from Montreal to Sydney
Discover carefully curated flight deals from Montreal to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 11 September 2025.

Mon 26/19:15 a.m.YUL - SYD

2 stops32h 00mUnited Airlines

Tue 7/49:30 a.m.SYD - YUL

2 stops25h 31mUnited Airlines

Deal found 11/9C$ 2,166

Sun 26/107:30 a.m.YUL - SYD

1 stop34h 05mAir Canada

Tue 9/69:20 a.m.SYD - YUL

1 stop29h 14mAir Canada

Deal found 10/9C$ 2,170

Wed 28/16:00 a.m.YUL - SYD

2 stops35h 05mUnited Airlines

Wed 8/410:20 a.m.SYD - YUL

2 stops25h 20mUnited Airlines

Deal found 11/9C$ 2,166

Tue 23/96:30 p.m.YUL - SYD

1 stop22h 25mUnited Airlines

Tue 30/99:30 a.m.SYD - YUL

2 stops25h 59mUnited Airlines

Deal found 11/9C$ 2,166

Wed 15/102:20 p.m.YUL - SYD

2 stops26h 40mUnited Airlines

Wed 29/1011:50 a.m.SYD - YUL

2 stops24h 52mUnited Airlines

Deal found 10/9C$ 2,170

Wed 1/106:30 p.m.YUL - SYD

1 stop22h 25mUnited Airlines

Mon 10/1111:20 a.m.SYD - YUL

2 stops24h 28mUnited Airlines

Deal found 10/9C$ 2,170

Wed 1/106:30 p.m.YUL - SYD

1 stop22h 25mUnited Airlines

Wed 22/1010:30 a.m.SYD - YUL

2 stops24h 15mUnited Airlines

Deal found 10/9C$ 2,170

Wed 5/116:00 a.m.YUL - SYD

2 stops33h 00mUnited Airlines

Mon 17/1112:10 p.m.SYD - YUL

2 stops23h 38mUnited Airlines

Deal found 10/9C$ 2,170

Tue 23/96:30 p.m.YUL - SYD

1 stop22h 25mUnited Airlines

Tue 21/1011:20 a.m.SYD - YUL

2 stops23h 25mUnited Airlines

Deal found 9/9C$ 2,170

Wed 1/106:30 p.m.YUL - SYD

1 stop22h 25mUnited Airlines

Fri 31/1011:50 a.m.SYD - YUL

2 stops24h 52mUnited Airlines

Deal found 10/9C$ 2,216

Last-minute flights from Montreal to Sydney
Discover last-minute flight deals from Montreal to Sydney. Data last updated 11 September 2025 and is based on user searches.

Fri 19/96:45 a.m.YUL - SYD

2 stops34h 20mMultiple Airlines

Fri 24/1010:10 a.m.SYD - YUL

2 stops29h 27mMultiple Airlines

Deal found 11/9C$ 2,072

Tue 23/96:45 a.m.YUL - SYD

2 stops34h 20mMultiple Airlines

Tue 30/99:10 a.m.SYD - YUL

2 stops29h 27mMultiple Airlines

Deal found 11/9C$ 2,061

Sat 25/109:45 p.m.YUL - SYD

1 stop43h 50mMultiple Airlines

Sat 1/119:55 p.m.SYD - YUL

2 stops35h 05mMultiple Airlines

Deal found 10/9C$ 2,036

Sat 25/109:45 p.m.YUL - SYD

1 stop43h 50mAir Canada

Sat 1/1110:20 a.m.SYD - YUL

1 stop23h 59mAir Canada

Deal found 10/9C$ 2,043

Sat 25/107:15 p.m.YUL - SYD

2 stops46h 20mAir Canada

Wed 19/1111:20 a.m.SYD - YUL

2 stops40h 49mAir Canada

Deal found 11/9C$ 2,074

Sun 26/107:30 a.m.YUL - SYD

1 stop34h 05mAir Canada

Sun 2/1111:20 a.m.SYD - YUL

2 stops22h 19mAir Canada

Deal found 11/9C$ 2,073

Mon 27/1011:30 a.m.YUL - SYD

3 stops30h 05mAir Canada

Wed 10/69:20 a.m.SYD - YUL

2 stops25h 00mAir Canada

Deal found 11/9C$ 2,081

Tue 28/101:20 p.m.YUL - SYD

2 stops28h 15mAir Canada

Mon 10/1111:20 a.m.SYD - YUL

3 stops25h 24mAir Canada

Deal found 8/9C$ 2,041

One-way flights from Montreal to Sydney
Search for one-way flight options from Montreal to Sydney. Find affordable one-way fares based on user searches. Data last updated 11 September 2025.

Wed 22/107:00 a.m.YUL - SYD

3 stops58h 20mMultiple Airlines

Deal found 9/9C$ 757

Tue 21/107:00 a.m.YUL - SYD

3 stops34h 05mMultiple Airlines

Deal found 11/9C$ 805

Wed 19/116:00 p.m.YUL - SYD

3 stops45h 25mMultiple Airlines

Deal found 10/9C$ 904

Sun 26/106:00 p.m.YUL - SYD

3 stops46h 25mMultiple Airlines

Deal found 11/9C$ 952

Thu 27/115:10 p.m.YUL - SYD

3 stops51h 55mMultiple Airlines

Deal found 11/9C$ 1,017

Mon 13/106:45 a.m.YUL - SYD

3 stops59h 15mMultiple Airlines

Deal found 9/9C$ 1,041

Tue 14/106:35 p.m.YUL - SYD

3 stops52h 00mMultiple Airlines

Deal found 9/9C$ 1,100

Fly from

Fly to

Route

Depart

Return

Price

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 26/1

9:15 a.m.-9:15 a.m.

2 stops32h 00m

Sydney Kingsford Smith

Tue 7/4

9:30 a.m.-9:01 p.m.

2 stops25h 31m

C$ 2,166

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 28/1

6:00 a.m.-9:05 a.m.

2 stops35h 05m

Sydney Kingsford Smith

Wed 8/4

10:20 a.m.-9:40 p.m.

2 stops25h 20m

C$ 2,166

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 23/9

6:30 p.m.-6:55 a.m.

1 stop22h 25m

Sydney Kingsford Smith

Tue 30/9

9:30 a.m.-9:29 p.m.

2 stops25h 59m

C$ 2,166

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 26/10

7:30 a.m.-8:35 a.m.

1 stop34h 05m

Sydney Kingsford Smith

Tue 9/6

9:20 a.m.-12:34 a.m.

1 stop29h 14m

C$ 2,170

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 15/10

2:20 p.m.-8:00 a.m.

2 stops26h 40m

Sydney Kingsford Smith

Wed 29/10

11:50 a.m.-9:42 p.m.

2 stops24h 52m

C$ 2,170

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

6:30 p.m.-6:55 a.m.

1 stop22h 25m

Sydney Kingsford Smith

Mon 10/11

11:20 a.m.-7:48 p.m.

2 stops24h 28m

C$ 2,170

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

6:30 p.m.-6:55 a.m.

1 stop22h 25m

Sydney Kingsford Smith

Wed 22/10

10:30 a.m.-7:45 p.m.

2 stops24h 15m

C$ 2,170

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 5/11

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

2 stops33h 00m

Sydney Kingsford Smith

Mon 17/11

12:10 p.m.-7:48 p.m.

2 stops23h 38m

C$ 2,170

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 23/9

6:30 p.m.-6:55 a.m.

1 stop22h 25m

Sydney Kingsford Smith

Tue 21/10

11:20 a.m.-7:45 p.m.

2 stops23h 25m

C$ 2,170

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Wed 1/10

6:30 p.m.-6:55 a.m.

1 stop22h 25m

Sydney Kingsford Smith

Fri 31/10

11:50 a.m.-9:42 p.m.

2 stops24h 52m

C$ 2,216

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 18 results

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 48 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$ 1,326). Flying from Montreal to Sydney in December is currently the most expensive (average of C$ 1,881). 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.

What is the cheapest time of day to fly from YMQ to SYD?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 13% on flights from Montreal to Sydney by exploring options for tickets in the evening.

What is the cheapest day to fly from Montreal to Sydney?

Travelers seeking maximum savings on their Montreal to Sydney flight should consider departing on Friday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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?

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?

Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 344.

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 50m.

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 52m.

Reviews of airlines servicing Sydney

Get a feel of what it's like to fly with Air New Zealand,Qantas 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

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Air New Zealand

8.0

Very good

505 reviews

Air New Zealand

8.0

Very good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Qantas Airways

7.5

Good

905 reviews

Air New Zealand

8.0

Very good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

United Airlines

7.4

Good

8,937 reviews

Air New Zealand

8.0

Very good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

WestJet

7.2

Good

3,091 reviews

Air New Zealand

8.0

Very good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

Air Canada

7.1

Good

10,000 reviews

Air New Zealand

8.0

Very good

505 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,Jul 2025

AKL - SFO

Flight was delayed an hour. We had just flown Air NZ on a 12- hour flight from AKL so the extra delay on this connecting flight wasn’t welcomed.

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 8 different airlines.
How long is the flight from Montreal to Sydney?
For as low as C$ 2,166, United Airlines can have you in Sydney from Montreal in 32h. 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$ 297, 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$ 330 and C$ 452, respectively. These flights start at 86% lower than the current average price 3 months from now.
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$ 1,326). Flying from Montreal to Sydney in December is currently the most expensive (average of C$ 1,881). 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

Parramatta

Penrith

Browse thousands of different options on Cheapflights for your next trip

Other flights to Sydney

Top 8 airlines flying from Montreal to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	CheapestC$ 297	AverageC$ 383	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
WestJet	CheapestC$ 330	AverageC$ 561	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Delta	CheapestC$ 452	AverageC$ 1,145	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Qantas Airways	CheapestC$ 1,110	AverageC$ 2,226	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Air New Zealand	CheapestC$ 1,736	AverageC$ 1,839	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
Air Canada	CheapestC$ 1,738	AverageC$ 2,278	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 1,810	AverageC$ 2,221	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Qatar Airways	CheapestC$ 2,036	AverageC$ 2,319	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways 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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Cheap flights from Montreal to Sydney from C$ 757

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 22/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Montreal to Sydney Kingsford Smith are usually found in April or March, booked 48 days in advance, depart on a Sunday or Wednesday and return on a Friday

Cheap flight deals from Montreal to Sydney

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Montreal to Sydney

Cheapest flights from Montreal to SydneyExplore 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 11 September 2025.

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 11 September 2025.

Cheapflights Fare Finder

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

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.

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 29 August 2025.

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

What is the cheapest time of day to fly from YMQ to SYD?

Find hourly flight availability from Montreal to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

What is the cheapest day to fly from Montreal to Sydney?

Use this chart to determine the cheapest time to fly round-trip from Montreal to Sydney. Price data was last updated on 16 December 2024.

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.

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.

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.

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.

Reviews of airlines servicing Sydney

Get a feel of what it's like to fly with Air New Zealand,Qantas 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.

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?

How long is the flight from Montreal to Sydney?

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

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

How can I find direct flights from Montreal to Sydney?

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

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

Travelling to a place near Sydney?

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 11 September 2025.

Top 8 airlines flying from Montreal to Sydney

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.

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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 11 September 2025.