YUL - SYD

$876 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 3/12. 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, 0 bags

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
Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight 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

Wed, 18 Feb - Thu, 26 Feb
Multiple Airlines Logo
20:50 - 18:50YUL-SYD
30h 00m1 stop
Multiple Airlines Logo
11:20 - 17:35SYD-YUL
22h 15m2 stops
$2,275Multiple Airlines
Find Deal
Mon, 2 Mar - Tue, 10 Mar
Multiple Airlines Logo
06:45 - 09:35YUL-SYD
58h 50m2 stops
Multiple Airlines Logo
22:20 - 00:38SYD-YUL
41h 18m2 stops
$2,281Multiple Airlines
Find Deal
Sun, 22 Feb - Sun, 15 Mar
Qatar Airways Logo
20:50 - 06:50YUL-SYD
42h 00m1 stop
Qatar Airways Logo
15:50 - 15:05SYD-YUL
38h 15m1 stop
$2,304Qatar Airways
Find Deal
Sun, 1 Mar - Sun, 8 Mar
Qatar Airways Logo
20:50 - 06:50YUL-SYD
42h 00m1 stop
Qatar Airways Logo
15:50 - 14:05SYD-YUL
38h 15m1 stop
$2,312Qatar Airways
Find Deal
Tue, 17 Mar - Wed, 22 Apr
Air Canada Logo
09:00 - 08:35YUL-SYD
32h 35m1 stop
Air Canada Logo
09:20 - 19:12SYD-YUL
23h 52m1 stop
$2,321Air Canada
Find Deal
Sun, 7 Dec - Mon, 22 Dec
American Airlines Logo
12:59 - 09:00YUL-SYD
28h 01m2 stops
American Airlines Logo
11:20 - 22:39SYD-YUL
27h 19m2 stops
$2,333American Airlines
Find Deal
Mon, 9 Mar - Sun, 15 Mar
Air Canada Logo
13:25 - 08:35YUL-SYD
28h 10m1 stop
Air Canada Logo
10:20 - 19:14SYD-YUL
23h 54m2 stops
$2,340Air Canada
Find Deal
Sun, 16 Nov - Sun, 23 Nov
American Airlines Logo
14:29 - 09:00YUL-SYD
26h 31m2 stops
American Airlines Logo
11:20 - 22:40SYD-YUL
27h 20m2 stops
$2,357American Airlines
Find Deal
Tue, 13 Jan - Mon, 26 Jan
United Airlines Logo
09:15 - 09:05YUL-SYD
31h 50m2 stops
United Airlines Logo
12:10 - 19:48SYD-YUL
23h 38m2 stops
$2,362United Airlines
Find Deal
Mon, 26 Jan - Tue, 10 Feb
United Airlines Logo
15:00 - 09:15YUL-SYD
26h 15m2 stops
United Airlines Logo
12:10 - 19:48SYD-YUL
23h 38m2 stops
$2,369United Airlines
Find Deal

Everything you should know

Top airlines
Qatar Airways
Cheapest • from $2,304 (return)
Air Canada
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
8 weeks
in advance
Our data shows that travellers who book at least 8 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
May
Cheapest • 11% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
$2,275
Typical prices: $2,034-$2,674
Multiple Airlines
Wed 18/2Thu 26/2
YUL - SYD • 1 stop
Cheapest one-way flight
$876
Typical prices: $1,734-$1,998
Multiple Airlines
Wed 3/12
YUL - SYD • 3 stops
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Booking Insights

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.

How much is a return flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney departing in February.

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 May, where tickets cost $2,234 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $3,053 and $2,898 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 8 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Find deals

Good to know

Low seasonSeptember
Cheapest flight$876
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 $876 for a one-way ticket and $2,275 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?

    Star Alliance is the only airline alliance operating flights between Montreal and Sydney.

  • 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.

Reviews of the 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 10381 reviews
7.1Comfort
6.8Entertainment
7.8Crew
7.3Boarding
6.3Food
Airline reviews

It was crazy, boarded over a hour late from scheduled departure. Then when arrived in BNA issued with getting off the plane…over 1/2 hour. Not looking forward to flying Air Canada, ever again.

2.0 MediocreAnonymous, Oct 2025YUL - BNA
Read more Air Canada reviews

It was crazy, boarded over a hour late from scheduled departure. Then when arrived in BNA issued with getting off the plane…over 1/2 hour. Not looking forward to flying Air Canada, ever again.

Great flight. Only complaint is it took over an hour for my luggage to get to the carousel on the return to LAX That was irritating

The service to/from the airport/plane (wheelchair assistance for my mother in law) was exceptional. The staff was super friendly and courteous. The staff on the plane was also very nice. The food quality could have been better (mashed chicken sandwich).

The flight was great. I like it when airline capitalism give you information. For someone with flight jitters it really helps. And this captain was very cheery and reassuring. I had trouble understanding the head flight attendant because she spoke very fast. But overall staff were very helpful and kind.

1 hour late No hot drinks No restroom in the back of the plane

I did the posting for 45 years. I just retired. I’m the only seat in the plane but didn’t have any phone. It has to be mine so imagine seeing 13 hours on the flat seat with a belt that didn’t close all the rest was OK.

I had wonderful wheelchair assistance through the Montreal airport onto the flight. Air Canada was excellent in this both at the Fredericton airport and the Montreal one where an attendant helped us through customs as well as transport and baggage security.

Flight was cancelled last minute due to Air Canada strike leaving us stranded and having to stressfully find a way home that cost hundreds of dollars in excess cost added to the trip. Having just experienced our mother's funeral service, this was not a good way to end our trip.

They went on strike before time and screwed us big time. Which is not fair. We respect their planned strike but why they went on strike ahead of time ??? Poor garbage management

Premium Economy is best if you can't get upgraded to Business.. Not as good to sleep for red-eye flights, but does the job. More space for your legs and arms.. The food is also better and the service is almost like business.

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

Information on your arrival and departure airports

Montreal (YUL)
Sydney (SYD)

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.