YUL - SYD

$565 Find Cheap Flights from Montreal to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Pierre Elliott Trudeau Intl to Sydney departing on 26/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Sydney, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Montreal to Sydney (YUL-SYD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Montreal to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Pierre Elliott Trudeau Intl to Sydney

Mon, 25 Aug - Sat, 4 Oct
 Logo
07:00 - 07:30YUL-SYD
34h 30m2 stops
 Logo
09:10 - 00:41SYD-YUL
29h 31m2 stops
$1,701
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Sun, 31 Aug - Sun, 14 Sep
 Logo
08:10 - 07:05YUL-SYD
32h 55m2 stops
 Logo
09:10 - 07:07SYD-YUL
35h 57m2 stops
$1,702
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Sat, 1 Nov - Sat, 8 Nov
Air Canada Logo
22:10 - 09:35YUL-SYD
44h 25m2 stops
Air Canada Logo
11:20 - 21:04SYD-YUL
25h 44m1 stop
$2,207Air Canada
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Sat, 1 Nov - Sat, 8 Nov
Air Canada Logo
22:10 - 09:35YUL-SYD
44h 25m2 stops
Air Canada Logo
11:20 - 21:48SYD-YUL
26h 28m2 stops
$2,218Air Canada
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Tue, 28 Oct - Mon, 10 Nov
Qatar Airways Logo
21:50 - 06:50YUL-SYD
42h 00m1 stop
Qatar Airways Logo
15:50 - 14:05SYD-YUL
38h 15m1 stop
$2,267Qatar Airways
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Tue, 28 Oct - Mon, 10 Nov
Qatar Airways Logo
21:50 - 06:50YUL-SYD
42h 00m1 stop
Qatar Airways Logo
15:50 - 14:05SYD-YUL
38h 15m1 stop
$2,269Qatar Airways
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Sun, 24 Aug - Fri, 3 Oct
Air New Zealand Logo
16:40 - 08:45YUL-SYD
26h 05m2 stops
Air New Zealand Logo
10:50 - 00:36SYD-YUL
27h 46m2 stops
$2,422Air New Zealand
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Sun, 28 Sep - Sun, 12 Oct
United Airlines Logo
18:30 - 06:55YUL-SYD
22h 25m1 stop
United Airlines Logo
10:30 - 21:29SYD-YUL
25h 59m2 stops
$2,424United Airlines
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Wed, 30 Jul - Sun, 24 Aug
United Airlines Logo
18:30 - 06:55YUL-SYD
22h 25m1 stop
United Airlines Logo
10:20 - 08:16SYD-YUL
35h 56m1 stop
$2,427United Airlines
Find Deal
Sat, 1 Nov - Sat, 8 Nov
Air New Zealand Logo
07:30 - 10:25YUL-SYD
35h 55m2 stops
Air New Zealand Logo
13:55 - 17:05SYD-YUL
43h 10m2 stops
$2,525Air New Zealand
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KAYAK's insights & trends for Pierre Elliott Trudeau Intl to Sydney flights

Get data-powered insights and trends into flights from Pierre Elliott Trudeau Intl to Sydney to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Montreal to Sydney?

The average price of all round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Sydney clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Sydney on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Montreal to Sydney. For your return ticket, we recommend flying on a Sunday and avoiding Fridays for the best deals.

What is the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Montreal Pierre Elliott Trudeau Intl Airport to Sydney is April, where tickets cost $2,246 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $3,073 and $3,007 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.


Good to know

Low seasonSeptember
High seasonDecember
Cheapest flight$565
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly (22% more expensive on average)
Flight from Montreal to Sydney

When to book flights from Pierre Elliott Trudeau Intl to Sydney

Are your dates flexible? Find out the best times to travel from Pierre Elliott Trudeau Intl to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Montreal to Sydney flights

  • What is the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney?

    In the last 3 days, the lowest price for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney was $368 for a one-way ticket and $1,108 for a return.

  • Which airports will I be using when flying from Montreal to Sydney?

    Montreal and Sydney are both served by 1 main airport. You will leave Montreal from Montreal Pierre Elliott Trudeau Intl and will be arriving at Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Montreal to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Montreal to Sydney?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Montreal and Sydney, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Montreal to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Montreal to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Montreal to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Montreal is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Montreal to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to Montreal with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Montreal to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Montreal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Pierre Elliott Trudeau Intl to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Montreal to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Pierre Elliott Trudeau Intl to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 9531 reviews
6.3Food
7.3Boarding
7.8Crew
6.8Entertainment
7.0Comfort
Airline reviews

Service Director cut all cabin lights and window screens defaulted to dark, but it was an afternoon flight going west. I spent hours trying to see what was reading as reading lights weren't working either. What the hell.

8.0 ExcellentAnonymous, June 2025YUL - YYC
Read more Air Canada reviews

Service Director cut all cabin lights and window screens defaulted to dark, but it was an afternoon flight going west. I spent hours trying to see what was reading as reading lights weren't working either. What the hell.

The food could have been better. The flight attendant was the friendliest and most helpful I have ever had.

Almost no food given on a 5-hour flight (only a cookie, which is almost a joke). Boarding was a mess (as always, in Montreal boarding by zones is chaotic and the lines are a total mess). The entertainment system was old and with a limited selection.

Very nice comfortable spacy Airbus 321. I liked the offer of food on the Bistro menu. The idea is very good to pay and cost was low.

Received email saying that there won’t be a seat back entertainment screen and inflight WiFi would be available. But no WiFi both ways. Say it in the email.

Staff was very attentive! Food was good for premium economy airplane food. Clearly an older plane - seat back had to be pulled up manually after being reclined.

Good, only discomfort was consistent turbulence through the 3 hour flight. Not sure if in companies control though.

No frills very ordinary, charged me twice to book my seat assignment will.need to complain for reimbursement.

Everything ok, but it was a lot of turbulence during the flight.

Not enough electronic outlets for charging in the Air Canada waiting to board area but the Most important thing….the plane was booked to only 40% capacity and my row of 2 other seats were empty. My row happened to be one of the few rows that did NOT have raising arm rests. The flight attendant made effort to seat me in a different row. I needed wheelchair assistance due to a cyst on my knee and struggled to move from seat to seat to get to the row. Those 2 empty seats tormented me the entire 15+ hour flight as I had to be upright the entire flight and was not able to elevate my knee. Lots of other passengers were laying down due to the arm rest being able to retract. It is a shame that he couldn’t be gracious and find a row that I could move to.

Everything you need to know for your flight from Pierre Elliott Trudeau Intl to Sydney

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