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$874+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Sydney (SYD)

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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SYD
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Sydney Kingsford Smith are usually found in May or April, booked 51 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

Find flight deals from Pierre Elliott Trudeau Intl to Sydney

Cheapest flights from Pierre Elliott Trudeau Intl to Sydney
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Gurufare deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/157:00 pmYUL - SYD
2 stops45h 45mAir New Zealand
lun. 12/151:55 pmSYD - YUL
2 stops42h 38mAir New Zealand
Deal found 10/27$1,545
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/292:13 pmYUL - SYD
2 stops25h 47mUnited Airlines
mié. 11/511:20 amSYD - YUL
2 stops24h 28mUnited Airlines
Deal found 10/28$1,550
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/32:13 pmYUL - SYD
2 stops27h 02mUnited Airlines
lun. 11/2411:20 amSYD - YUL
2 stops26h 22mUnited Airlines
Deal found 10/29$1,551
This Air New Zealand deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/278:25 amYUL - SYD
2 stops34h 05mMultiple Airlines
jue. 12/44:00 pmSYD - YUL
1 stop21h 00mMultiple Airlines
Deal found 10/30$1,554
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/29:15 amYUL - SYD
2 stops31h 50mUnited Airlines
mar. 12/911:50 amSYD - YUL
2 stops25h 52mUnited Airlines
Deal found 10/30$1,556
This Qatar Airways deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/198:50 pmYUL - SYD
1 stop42h 00mQatar Airways
lun. 3/233:50 pmSYD - YUL
1 stop38h 15mQatar Airways
Deal found 10/30$1,568
This Qatar Airways deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/198:50 pmYUL - SYD
1 stop42h 00mQatar Airways
jue. 3/269:40 pmSYD - YUL
1 stop32h 25mQatar Airways
Deal found 10/30$1,573
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/152:29 pmYUL - SYD
2 stops26h 31mAmerican Airlines
lun. 12/1511:20 amSYD - YUL
2 stops27h 20mAmerican Airlines
Deal found 10/30$1,582
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/82:13 pmYUL - SYD
2 stops48h 47mUnited Airlines
sáb. 11/1511:20 amSYD - YUL
2 stops24h 28mUnited Airlines
Deal found 10/27$1,585
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/12:13 pmYUL - SYD
2 stops49h 47mUnited Airlines
vie. 11/711:50 amSYD - YUL
2 stops23h 58mUnited Airlines
Deal found 10/29$1,587
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/283:00 pmYUL - SYD
2 stops26h 05mUnited Airlines
lun. 12/811:20 amSYD - YUL
2 stops26h 22mUnited Airlines
Deal found 10/30$1,592
This Air Canada deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/78:50 amYUL - SYD
3 stops32h 45mAir Canada
lun. 12/224:00 pmSYD - YUL
2 stops23h 09mAir Canada
Deal found 10/28$1,595

Cheap flight deals from Pierre Elliott Trudeau Intl to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) 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 octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$1,512
(Qatar Airways)

One-way from

$874
(Qatar Airways)

Popular in

December

Cheapest in

May

Average price

$1,654
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Sydney Kingsford Smith flights.
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From Montreal Pierre Elliott Trudeau Intl to Sydney Kingsford Smith
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One-way flight from Montreal Pierre Elliott Trudeau Intl to Sydney Kingsford Smith
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Highest demand for flights based on searches. 10% potential increase in price ($199 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl 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 2,558,603 searches. Data last updated octubre 30, 2025.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Sydney that are best for you.

Fly from

Pierre Elliott Trudeau Intl

Fly to

Sydney

Route

Depart

Return

Price

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

lun. 11/3

2:13 pm-9:15 am

2 stops27h 02m

Sydney Kingsford Smith

lun. 11/24

11:50 am-9:42 pm

2 stops25h 52m

$1,550

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

dom. 1/18

6:00 am-6:20 am

2 stops32h 20m

Sydney Kingsford Smith

mar. 1/27

12:10 pm-7:48 pm

2 stops23h 38m

$1,550

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

dom. 1/25

9:15 am-6:20 am

2 stops29h 05m

Sydney Kingsford Smith

mié. 2/25

12:10 pm-9:17 pm

2 stops25h 07m

$1,551

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

mié. 1/14

6:00 am-6:20 am

2 stops32h 20m

Sydney Kingsford Smith

mié. 2/11

12:10 pm-7:48 pm

2 stops23h 38m

$1,551

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

lun. 1/26

3:00 pm-9:15 am

2 stops26h 15m

Sydney Kingsford Smith

mar. 2/24

12:10 pm-7:48 pm

2 stops23h 38m

$1,551

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

mar. 1/27

9:15 am-6:20 am

2 stops29h 05m

Sydney Kingsford Smith

mar. 2/24

12:10 pm-7:48 pm

2 stops23h 38m

$1,551

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

mié. 1/21

2:13 pm-9:15 am

2 stops27h 02m

Sydney Kingsford Smith

mar. 2/24

12:10 pm-7:48 pm

2 stops23h 38m

$1,556

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

dom. 1/11

6:00 am-7:00 am

2 stops33h 00m

Sydney Kingsford Smith

lun. 2/16

11:20 am-9:17 pm

2 stops25h 57m

$1,562

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

sáb. 11/8

2:13 pm-7:00 am

2 stops48h 47m

Sydney Kingsford Smith

sáb. 11/15

11:20 am-7:48 pm

2 stops24h 28m

$1,585

MontrealSydney

YUL - SYD

YULSYD

Montreal Pierre Elliott Trudeau Intl

dom. 1/25

2:13 pm-9:05 am

2 stops26h 52m

Sydney Kingsford Smith

vie. 2/13

12:10 pm-9:17 pm

2 stops25h 07m

$1,585

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 18 results
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Compare providers for flights from Pierre Elliott Trudeau Intl to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Pierre Elliott Trudeau Intl to Sydney in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
GurufarePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Sydney flights, Cheapflights users trust Gurufare the most. Gurufare has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Pierre Elliott Trudeau Intl to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to Sydney

How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney?

Use this chart to determine the optimal time to book a round-trip flight from Pierre Elliott Trudeau Intl to Sydney. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney?

Currently, July is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney (average of $276). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Sydney in June is currently the most expensive (average of $1,288). 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 YUL to SYD?

Find hourly flight availability from Pierre Elliott Trudeau Intl 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 octubre 30, 2025.

It’s typically best to fly out from Montreal Pierre Elliott Trudeau Intl Airport to Sydney in the evening. Doing so could potentially save you 46% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to Sydney?

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 octubre 30, 2025.
Read reviews from past customers who have flown United Airlines and Air Canada from Montreal Pierre Elliott Trudeau Intl Airport to Sydney. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,998 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Air Canada
7.1
Good
10,381 reviews
United Airlines
7.4
Good
8,998 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl?

    Sydney Kingsford Smith (SYD), located 4.6 mi from the city center, is the airport you fly into when you book flights from Montreal Pierre Elliott Trudeau Intl to Sydney. 2 airlines have flights to Kingsford Smith from Montreal Pierre Elliott Trudeau Intl on a regular basis. Booking flights from Montreal Pierre Elliott Trudeau Intl to Sydney Kingsford Smith should not be difficult; the airport handles an average of 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney?

    A quick flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney can take about 27h 02m. United Airlines provides one of the quickest options available for as low as $1,550. Airlines will cover a distance of 9949 mi.

  • What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Sydney round-trip?

    Currently priced at $1,259, Air Canada will fly you from Montreal Pierre Elliott Trudeau Intl Airport to Sydney and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $1,294. You may be able to fly from Montreal Pierre Elliott Trudeau Intl Airport to Sydney for 23% less than the average price by searching for these airlines.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Sydney that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Sydney?

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

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Sydney?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl 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 Pierre Elliott Trudeau Intl Airport to Sydney?

    Currently, July is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney (average of $276). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Sydney in June is currently the most expensive (average of $1,288). 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

Traveling to a place near Sydney?

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Top 2 airlines flying from Pierre Elliott Trudeau Intl to Sydney

Discover the top 2 airlines that operate flights from Pierre Elliott Trudeau Intl 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 2,558,603 searches. Data last updated octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,259Average$1,721FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$1,294Average$1,557FlexibilityNo cancel feeOn-time69%

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