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

Currently priced at C$ 2,088, Air New Zealand will fly you from Montreal to Sydney and back. In addition to Air New Zealand, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Austrian Airlines - these airlines can fly you to your destination from C$ 2,135 and C$ 2,138, respectively. These flights start at 8% 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$ 1,214. 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.

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 American Airlines, Air Canada or Delta 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 22 days early can save you up to 211% on average compared to booking a flight this week. If booking 22 days before your flight isn’t an option for you, users have found flights from Montreal to Sydney for as little as C$ 1,912 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$ 1,912 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 May. Prices to Sydney from Montreal average C$ 2,284. You can even find prices in May for less than C$ 2,284, as users have found deals to Sydney from as low as C$ 1,221. 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 32%.

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 10 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$ 823+ Flights from Montreal to Sydney

Cheapflights Tip: The best prices from Montreal to Sydney Kingsford Smith are usually found in May or April, booked 21 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$ 2,088
One-way from	C$ 823
Popular in	December
Cheapest in	May
Average price	C$ 2,057

Air New Zealand
13/6-6/7
4 total stops
69h 09m total
Montreal to Sydney

Search Deals

21/5
3 total stops
41h 40m total
Montreal to Sydney

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (C$ 447 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (C$ 98 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 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 April 2025.

Sat 1/117:00 a.m.YUL - SYD

2 stops32h 35mWestJet

Sat 15/118:30 p.m.SYD - YUL

2 stops35h 06mWestJet

Deal found 10/4C$ 1,954

Thu 24/78:10 a.m.YUL - SYD

2 stops56h 55mMultiple Airlines

Wed 20/89:10 a.m.SYD - YUL

2 stops35h 58mMultiple Airlines

Deal found 10/4C$ 1,980

Mon 15/99:35 p.m.YUL - SYD

1 stop42h 40mQatar Airways

Mon 29/98:45 p.m.SYD - YUL

1 stop32h 00mQatar Airways

Deal found 10/4C$ 2,015

Sat 22/116:15 p.m.YUL - SYD

2 stops46h 30mAir New Zealand

Sat 6/127:15 p.m.SYD - YUL

2 stops51h 55mAir New Zealand

Deal found 9/4C$ 2,047

Sun 3/86:30 p.m.YUL - SYD

1 stop22h 25mUnited Airlines

Wed 20/810:20 a.m.SYD - YUL

2 stops25h 09mUnited Airlines

Deal found 10/4C$ 2,135

Sun 25/56:35 p.m.YUL - SYD

2 stops49h 45mAustrian Airlines

Thu 5/62:50 p.m.SYD - YUL

2 stops37h 00mAustrian Airlines

Deal found 11/4C$ 2,138

Sun 25/56:50 p.m.YUL - SYD

3 stops45h 40mKLM

Thu 5/61:05 p.m.SYD - YUL

2 stops41h 50mKLM

Deal found 11/4C$ 2,311

Thu 22/512:30 p.m.YUL - SYD

2 stops28h 35mQantas Airways

Sat 24/58:30 p.m.SYD - YUL

2 stops42h 13mQantas Airways

Deal found 10/4C$ 2,377

Sat 2/89:45 p.m.YUL - SYD

1 stop43h 35mAir Canada

Wed 20/89:20 a.m.SYD - YUL

1 stop25h 30mAir Canada

Deal found 10/4C$ 2,381

Sun 6/73:40 p.m.YUL - SYD

2 stops25h 25mAmerican Airlines

Wed 16/79:10 a.m.SYD - YUL

2 stops27h 40mAmerican Airlines

Deal found 10/4C$ 2,719

Wed 31/127:55 p.m.YUL - SYD

1 stop31h 50mTurkish Airlines

Sat 31/19:40 p.m.SYD - YUL

1 stop36h 20mTurkish Airlines

Deal found 10/4C$ 2,920

Sat 5/72:50 p.m.YUL - SYD

2 stops49h 55mLATAM Airlines

Mon 14/711:50 a.m.SYD - YUL

3 stops37h 56mLATAM Airlines

Deal found 10/4C$ 3,055

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 April 2025.

Fri 13/68:35 a.m.YUL - SYD

2 stops36h 00mAir New Zealand

Sun 6/711:50 a.m.SYD - YUL

2 stops33h 09mAir New Zealand

Deal found 10/4C$ 2,088

Fri 23/57:00 a.m.YUL - SYD

2 stops34h 05mMultiple Airlines

Thu 12/69:10 a.m.SYD - YUL

2 stops53h 27mMultiple Airlines

Deal found 10/4C$ 2,124

Sun 25/56:30 p.m.YUL - SYD

1 stop22h 25mUnited Airlines

Sun 1/69:30 a.m.SYD - YUL

2 stops26h 36mUnited Airlines

Deal found 10/4C$ 2,135

Sun 25/56:35 p.m.YUL - SYD

2 stops49h 45mAustrian Airlines

Thu 5/62:50 p.m.SYD - YUL

2 stops37h 00mAustrian Airlines

Deal found 11/4C$ 2,138

Sun 25/56:50 p.m.YUL - SYD

3 stops45h 40mKLM

Thu 5/61:05 p.m.SYD - YUL

2 stops41h 50mKLM

Deal found 11/4C$ 2,311

Tue 6/59:35 p.m.YUL - SYD

1 stop29h 35mQatar Airways

Thu 12/62:50 p.m.SYD - YUL

1 stop37h 55mQatar Airways

Deal found 10/4C$ 2,326

Thu 22/512:30 p.m.YUL - SYD

2 stops28h 35mQantas Airways

Sat 24/58:30 p.m.SYD - YUL

2 stops42h 13mQantas Airways

Deal found 10/4C$ 2,377

Tue 20/59:10 a.m.YUL - SYD

1 stop32h 10mAir Canada

Tue 27/59:20 a.m.SYD - YUL

1 stop25h 30mAir Canada

Deal found 10/4C$ 2,402

Sun 6/73:40 p.m.YUL - SYD

2 stops25h 25mAmerican Airlines

Wed 16/79:10 a.m.SYD - YUL

2 stops27h 40mAmerican Airlines

Deal found 10/4C$ 2,719

Sat 5/72:50 p.m.YUL - SYD

2 stops49h 55mLATAM Airlines

Mon 14/711:50 a.m.SYD - YUL

3 stops37h 56mLATAM Airlines

Deal found 10/4C$ 3,055

Sat 5/710:15 a.m.YUL - SYD

1 stop45h 50mEmirates

Mon 14/76:00 a.m.SYD - YUL

1 stop40h 00mEmirates

Deal found 10/4C$ 3,829

Fri 20/66:00 a.m.YUL - SYD

2 stops34h 20mKorean Air

Mon 7/77:55 a.m.SYD - YUL

2 stops37h 13mKorean Air

Deal found 10/4C$ 7,889

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

Sun 20/411:15 a.m.YUL - SYD

2 stops29h 45mUnited Airlines

Sun 18/59:30 a.m.SYD - YUL

2 stops26h 36mUnited Airlines

Deal found 10/4C$ 2,135

Sun 20/43:44 p.m.YUL - SYD

1 stop25h 11mMultiple Airlines

Sun 18/510:25 a.m.SYD - YUL

2 stops28h 12mMultiple Airlines

Deal found 10/4C$ 2,352

Sun 20/46:50 p.m.YUL - SYD

2 stops44h 20mKLM

Sun 18/511:45 a.m.SYD - YUL

3 stops43h 10mKLM

Deal found 10/4C$ 2,814

Sun 20/46:15 p.m.YUL - SYD

1 stop23h 05mAir Canada

Sun 27/49:20 a.m.SYD - YUL

1 stop45h 47mAir Canada

Deal found 10/4C$ 4,020

Tue 6/59:35 p.m.YUL - SYD

1 stop29h 35mQatar Airways

Thu 12/62:50 p.m.SYD - YUL

1 stop37h 55mQatar Airways

Deal found 10/4C$ 2,326

Mon 12/54:45 p.m.YUL - SYD

2 stops26h 00mAir New Zealand

Sat 24/56:20 p.m.SYD - YUL

2 stops44h 24mAir New Zealand

Deal found 9/4C$ 2,155

Tue 20/59:10 a.m.YUL - SYD

1 stop32h 10mAir Canada

Tue 27/59:20 a.m.SYD - YUL

1 stop25h 30mAir Canada

Deal found 10/4C$ 2,402

Thu 22/512:30 p.m.YUL - SYD

2 stops28h 35mQantas Airways

Sat 24/58:30 p.m.SYD - YUL

2 stops42h 13mQantas Airways

Deal found 10/4C$ 2,377

Fri 23/57:00 a.m.YUL - SYD

2 stops34h 05mMultiple Airlines

Thu 12/69:10 a.m.SYD - YUL

2 stops53h 27mMultiple Airlines

Deal found 10/4C$ 2,124

Sun 25/56:30 p.m.YUL - SYD

1 stop22h 25mUnited Airlines

Sun 1/69:30 a.m.SYD - YUL

2 stops26h 36mUnited Airlines

Deal found 10/4C$ 2,135

Sun 25/56:35 p.m.YUL - SYD

2 stops49h 45mAustrian Airlines

Thu 5/62:50 p.m.SYD - YUL

2 stops37h 00mAustrian Airlines

Deal found 11/4C$ 2,138

Sun 25/56:50 p.m.YUL - SYD

3 stops45h 40mKLM

Thu 5/61:05 p.m.SYD - YUL

2 stops41h 50mKLM

Deal found 11/4C$ 2,311

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 April 2025.

Wed 21/57:00 a.m.YUL - SYD

3 stops41h 40mMultiple Airlines

Deal found 11/4C$ 823

Wed 21/59:35 p.m.YUL - SYD

1 stop29h 35mQatar Airways

Deal found 10/4C$ 1,214

Wed 21/56:00 p.m.YUL - SYD

1 stop23h 20mAir Canada

Deal found 11/4C$ 1,257

Tue 24/64:45 p.m.YUL - SYD

1 stop24h 10mUnited Airlines

Deal found 10/4C$ 1,529

Cheapflights Fare Finder

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

Thu 24/7

8:10 a.m.-7:05 a.m.

2 stops56h 55m

Sydney Kingsford Smith

Wed 20/8

9:10 a.m.-7:08 a.m.

2 stops35h 58m

C$ 1,980

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Mon 15/9

9:35 p.m.-6:15 a.m.

1 stop42h 40m

Sydney Kingsford Smith

Mon 29/9

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

1 stop32h 00m

C$ 2,015

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Fri 13/6

8:35 a.m.-10:35 a.m.

2 stops36h 00m

Sydney Kingsford Smith

Sun 6/7

11:50 a.m.-6:59 a.m.

2 stops33h 09m

C$ 2,088

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 3/8

6:15 a.m.-6:55 a.m.

2 stops34h 40m

Sydney Kingsford Smith

Sun 24/8

10:20 a.m.-7:45 p.m.

2 stops23h 25m

C$ 2,135

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Tue 6/5

6:50 p.m.-6:30 a.m.

3 stops45h 40m

Sydney Kingsford Smith

Thu 12/6

10:20 a.m.-4:55 p.m.

2 stops44h 35m

C$ 2,317

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Thu 22/5

12:30 p.m.-7:05 a.m.

2 stops28h 35m

Sydney Kingsford Smith

Sat 24/5

8:30 p.m.-12:43 a.m.

2 stops42h 13m

C$ 2,377

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 2/8

9:45 p.m.-7:20 a.m.

1 stop43h 35m

Sydney Kingsford Smith

Wed 20/8

9:20 a.m.-8:50 p.m.

1 stop25h 30m

C$ 2,381

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sun 6/7

3:40 p.m.-7:05 a.m.

2 stops25h 25m

Sydney Kingsford Smith

Wed 16/7

9:10 a.m.-10:50 p.m.

2 stops27h 40m

C$ 2,719

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 5/7

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

2 stops49h 55m

Sydney Kingsford Smith

Mon 14/7

11:50 a.m.-11:46 a.m.

3 stops37h 56m

C$ 3,055

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

Sat 5/7

10:15 a.m.-10:05 p.m.

1 stop45h 50m

Sydney Kingsford Smith

Mon 14/7

6:00 a.m.-8:00 a.m.

1 stop40h 00m

C$ 3,829

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/4

Showing 1-10 of 16 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 21 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.

Rainfall in Sydney by month

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.

Temperature in Sydney by month

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).

Reviews of airlines servicing Sydney

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

Korean Air

8.4

Very good

1,060 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2024

SGN - ICN

food needs to change, not tasty at all. I remember they used to be good.

Korean Air

8.4

Very good

1,060 reviews

Korean Air

8.4

Very good

1,060 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2024

SGN - ICN

food needs to change, not tasty at all. I remember they used to be good.

Emirates

8.0

Very good

3,197 reviews

Korean Air

8.4

Very good

1,060 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2024

SGN - ICN

food needs to change, not tasty at all. I remember they used to be good.

Air New Zealand

8.0

Very good

463 reviews

Korean Air

8.4

Very good

1,060 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2024

SGN - ICN

food needs to change, not tasty at all. I remember they used to be good.

KLM

7.8

Good

1,321 reviews

Korean Air

8.4

Very good

1,060 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2024

SGN - ICN

food needs to change, not tasty at all. I remember they used to be good.

Austrian Airlines

7.6

Good

774 reviews

Korean Air

8.4

Very good

1,060 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Anonymous,Nov 2024

SGN - ICN

food needs to change, not tasty at all. I remember they used to be good.

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 10 different airlines.
What are the cheapest airlines flying from Montreal to Sydney round-trip?
Currently priced at C$ 2,088, Air New Zealand will fly you from Montreal to Sydney and back. In addition to Air New Zealand, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Austrian Airlines - these airlines can fly you to your destination from C$ 2,135 and C$ 2,138, respectively. These flights start at 8% 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$ 1,214. 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$ 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

Top 10 airlines flying from Montreal to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Porter Airlines	CheapestC$ 301	AverageC$ 349	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
WestJet	CheapestC$ 322	AverageC$ 568	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Delta	CheapestC$ 579	AverageC$ 1,996	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	CheapestC$ 588	AverageC$ 2,463	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 666	AverageC$ 2,192	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Qantas Airways	CheapestC$ 1,238	AverageC$ 2,163	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Air Canada	CheapestC$ 1,729	AverageC$ 2,301	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Air New Zealand	CheapestC$ 1,730	AverageC$ 1,886	FlexibilityNo cancel fee	On-time78%	Search Air New Zealand flights
SWISS	CheapestC$ 1,807	AverageC$ 2,126	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Qatar Airways	CheapestC$ 2,349	AverageC$ 2,349	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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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Montreal to Sydney from C$ 823

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 21/5. 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 May or April, booked 21 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 April 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 April 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 4 April 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 April 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.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

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 11 April 2025.

Get a feel of what it's like to fly with Korean Air, Emirates and Air New Zealand 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?

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

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

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?

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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 April 2025.

Top 10 airlines flying from Montreal to Sydney

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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 April 2025.