YUL - SYD

$855 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 18/10. 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
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Everything you should know

Cheapest return fare
$1,482
Typical prices: $2,642-$1,953
Delta
Mon 20/7Tue 4/8
YUL - SYD • 2 stops
Cheapest one-way flight
$855
Typical prices: $1,461-$1,569
Multiple Airlines
Sun 18/10
YUL - SYD • 3 stops
Top airlines
Cheapest • from $1,482 (return)
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Pierre Elliott Trudeau Intl and Sydney. You’ll need at least 1 connection.
Insights
Insights
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Insights
Top stopover airports
Cheapest • Avg $613 (return)
Shortest trip • 8h 58m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 10% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
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

Mon, 20 Jul - Tue, 4 Aug
Delta Logo
07:00 - 06:50
YUL
-
SYD
33h 50m
2 stops
Delta Logo
09:15 - 23:55
SYD
-
YUL
28h 40m
2 stops
$1,482Delta
Thu, 23 Jul - Sun, 9 Aug
Delta Logo
07:00 - 06:50
YUL
-
SYD
33h 50m
2 stops
Delta Logo
09:15 - 16:01
SYD
-
YUL
44h 46m
2 stops
$1,553Delta
Sun, 6 Sep - Sun, 20 Sep
Multiple Airlines Logo
07:15 - 11:50
YUL
-
SYD
38h 35m
3 stops
Multiple Airlines Logo
13:15 - 07:05
SYD
-
YUL
31h 50m
3 stops
$1,583Multiple Airlines
Thu, 30 Jul - Thu, 13 Aug
Delta Logo
12:44 - 06:50
YUL
-
SYD
28h 06m
2 stops
Delta Logo
09:15 - 23:10
SYD
-
YUL
27h 55m
2 stops
$1,625Delta
Mon, 20 Jul - Tue, 28 Jul
Delta Logo
18:47 - 06:50
YUL
-
SYD
46h 03m
2 stops
Delta Logo
09:15 - 23:52
SYD
-
YUL
28h 37m
2 stops
$1,752Delta
Wed, 22 Jul - Thu, 30 Jul
Delta Logo
07:00 - 06:50
YUL
-
SYD
33h 50m
2 stops
Delta Logo
09:15 - 23:52
SYD
-
YUL
52h 37m
2 stops
$1,820Delta
Mon, 24 Aug - Sun, 6 Sep
ANA Logo
08:30 - 09:25
YUL
-
SYD
34h 55m
2 stops
ANA Logo
11:45 - 17:30
SYD
-
YUL
43h 45m
2 stops
$1,829ANA
Mon, 24 Aug - Sun, 6 Sep
ANA Logo
08:30 - 19:10
YUL
-
SYD
44h 40m
2 stops
ANA Logo
11:45 - 17:30
SYD
-
YUL
43h 45m
2 stops
$1,869ANA
Mon, 24 Aug - Sun, 6 Sep
ANA Logo
08:30 - 19:10
YUL
-
SYD
44h 40m
2 stops
ANA Logo
11:45 - 17:30
SYD
-
YUL
43h 45m
2 stops
$1,872ANA
Sun, 10 May - Mon, 25 May
Qatar Airways Logo
21:35 - 17:30
YUL
-
SYD
29h 55m
1 stop
Qatar Airways Logo
20:45 - 16:10
SYD
-
YUL
33h 25m
1 stop
$1,874Qatar Airways
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 July.

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 $2,075 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $2,659 and $2,607 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 3 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$855
Best time to beat the crowds (3% less expensive on average)
Most popular time to fly (14% 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 $855 for a one-way ticket and $1,482 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 10982 reviews
6.8Entertainment
7.3Boarding
6.3Food
7.1Comfort
7.8Crew
Airline reviews

This was my second leg of my trip and was delayed so was worried about my connection in Montreal. Still hungry so on boarding I asked a flight attendant if I could use my $14.00 voucher on the plane for food as I was starving. She said she would check and let me know but she never came back. So no food again as none was offered. Had to get my bags and check them again and that was ok but don’t understand why I had to go through security and because of them almost missed my flight. No food offered nor possibility to purchase food so still hungry and just watched a movie and hoped I could get food when I landed. Was able to use the $14.00 voucher to buy something and had my family bring food as I was now starving. I’ve been travelling on AC for years and this was my worst experience ever. After our flight got cancelled in SXM and was told the staff there didn’t work for AC so couldn’t do much to help us was not a good experience

6.0 GoodAngela, Apr 2026
YUL - YYZ
Read more Air Canada reviews

This was my second leg of my trip and was delayed so was worried about my connection in Montreal. Still hungry so on boarding I asked a flight attendant if I could use my $14.00 voucher on the plane for food as I was starving. She said she would check and let me know but she never came back. So no food again as none was offered. Had to get my bags and check them again and that was ok but don’t understand why I had to go through security and because of them almost missed my flight. No food offered nor possibility to purchase food so still hungry and just watched a movie and hoped I could get food when I landed. Was able to use the $14.00 voucher to buy something and had my family bring food as I was now starving. I’ve been travelling on AC for years and this was my worst experience ever. After our flight got cancelled in SXM and was told the staff there didn’t work for AC so couldn’t do much to help us was not a good experience

Staff looked unprofessional. Sloppy uniforms and hardly a smile to be found

After 3 hours of delays, they ended up cancelling my flight. And although I could purchase one-way tickets to get to my destination, they would not offer me these flights as compensation for the cancelled flight, and I didn't end up making it home until 13 hours after I was originally supposed to arrive. It made for an extremely strenuous end to an otherwise good trip.

Be careful about the bad policy and when purchasing seats

Very disappointed with premier lounge. Food selection very poor, both coffee machines out of order. For the price you charge for an upgrade, the seats don’t fully recline, movie selection is old. Not very good value. Asian airlines are light years ahead at a more affordable price.

Flight late with no explanation why so late boarding. More than made up the time in flight. Woman in seat behind me would not allow me to recline my seat so could not sleep. Slow to clean up after meal so has to leave my tray down. Flight attendants average at best. Premium economy experience was poor. It was a special trip for us, a 70th birthday. We could only book seats that were apart and no efforts could be made to get us together. Just poor all around

Business Class was great with two exceptions: they should board Business Class Only first, then loyalty, then handicapped and families with young children then by zone. With all the loyalty and credit card holders and families with kids, dozens boarded before us and we were in row 3. My only other compliant with Air Canada is they don’t serve drinks and snacks in business class until at a cruising altitude. Transat and Emirates serve prior to takeoff which is especially nice during boarding of big planes and de-icing.

The only good part was what we paid for, we travelled premium economy, good comfort travelling with a baby. Flight with AirCanada was again delayed for more than 4 hours, service level is horrible and they don't care. They deliver the bare minimum for a world class price. If you can avoid canadian air lines, do so, oligopoly does not help them to strive for any service level.

We left over 2 hours late and they didn't even give us a complimentary snack, when getting to the desk I asked if I could be put in a row with only 1 other person or an empt y one I was told the flight was full when the last two rows were empty. All around over it

Again, we were rerouted all the way to Zurich and had a longer journey than expected.

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

Information on your arrival and departure airports