YUL - SYD

$675 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 6/9. 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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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

So, 24 Aug - Mo, 8 Sep
Air Canada Logo
18:00 - 07:20YUL-SYD
23h 20m1 stop
Air Canada Logo
09:20 - 16:36SYD-YUL
21h 16m1 stop
$1,993Air Canada
Find Deal
So, 14 Sep - So, 21 Sep
 Logo
08:10 - 08:45YUL-SYD
34h 35m2 stops
 Logo
09:55 - 06:53SYD-YUL
34h 58m2 stops
$1,996
Find Deal
So, 24 Aug - Mo, 8 Sep
Air Canada Logo
16:45 - 07:20YUL-SYD
24h 35m1 stop
Air Canada Logo
09:20 - 16:36SYD-YUL
21h 16m1 stop
$2,000Air Canada
Find Deal
So, 24 Aug - Mo, 8 Sep
Air Canada Logo
18:00 - 07:20YUL-SYD
23h 20m1 stop
Air Canada Logo
09:20 - 19:32SYD-YUL
24h 12m2 stops
$2,005Air Canada
Find Deal
So, 14 Sep - Di, 28 Apr
Air New Zealand Logo
16:45 - 08:45YUL-SYD
26h 00m2 stops
Air New Zealand Logo
11:50 - 00:34SYD-YUL
26h 44m2 stops
$2,008Air New Zealand
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So, 24 Aug - Mo, 8 Sep
Air Canada Logo
18:00 - 11:40YUL-SYD
27h 40m2 stops
Air Canada Logo
09:20 - 19:32SYD-YUL
24h 12m2 stops
$2,010Air Canada
Find Deal
So, 14 Sep - So, 21 Sep
 Logo
08:10 - 08:45YUL-SYD
34h 35m2 stops
 Logo
09:55 - 07:00SYD-YUL
35h 05m3 stops
$2,014
Find Deal
So, 24 Aug - Mo, 8 Sep
Air Canada Logo
06:00 - 07:20YUL-SYD
35h 20m3 stops
Air Canada Logo
09:20 - 01:50SYD-YUL
30h 30m3 stops
$2,018Air Canada
Find Deal
Mi, 29 Okt - Di, 18 Nov
Air New Zealand Logo
07:30 - 10:30YUL-SYD
36h 00m2 stops
Air New Zealand Logo
11:45 - 06:44SYD-YUL
34h 59m2 stops
$2,024Air New Zealand
Find Deal
Di, 28 Okt - Mo, 10 Nov
Air New Zealand Logo
09:00 - 10:30YUL-SYD
34h 30m2 stops
Air New Zealand Logo
19:15 - 06:44SYD-YUL
51h 29m2 stops
$2,041Air New Zealand
Find Deal
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 round-trip flight from Montreal Pierre Elliott Trudeau Intl Airport to Sydney?

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 $2,241 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $3,054 and $3,006 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 5 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.


Good to know

Low seasonSeptember
Cheapest flight$675
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly (20% 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 $435 for a one-way ticket and $1,284 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 9851 reviews
6.3Food
7.8Crew
7.3Boarding
6.8Entertainment
7.1Comfort
Airline reviews

On-time boarding, departure, and flight. Electronic notifications about bags for the whole of their own journey too - from when they got accepted into the system through to being loaded onto the plane and then finally being disgorged onto the right carousel. That was an excellent feature.

10.0 ExcellentRobert, July 2025YUL - YHZ
Read more Air Canada reviews

On-time boarding, departure, and flight. Electronic notifications about bags for the whole of their own journey too - from when they got accepted into the system through to being loaded onto the plane and then finally being disgorged onto the right carousel. That was an excellent feature.

When I came in the front door in Montreal airport I didn't know where to go, first time traveling. Signs were not directing me.

Aircanada was not great. Didn't get anything to eat. No snacks. No entertainment. Horrible checking in.

My return flight experience was one of the worst times I have had traveling anywhere this year. Not because of the flight. It was because there was not enough time allocated to deplane, go through U.S. Customs and U.S. Security to get to the gate for the connecting flight to Boston which I missed, There was well less than an hour between my landing in Montreal from Prince Edward Island to my connecting gate. I even called Air Canada on the morning of my return and noted my concern over the short layover time, not more that 45 minutes. The initial flight was four minutes late. I was seated in the rear of the first aircraft, and it took at least 20 minutes to deplane. The U.S. Customs was a considerable distance from the gate at which we landed. The need for double security seemed unnecessary and redundant. The distance from the security to my gate was again fairly great, and the wrong gate number was listed on my boarding pass. The agent I approached at the flight that was going to Newark, New Jersey was too busy to answer my question as to what gate was for Boston. When I got to the right gate, they had just closed the door to the aircraft even though I arrived a minute late. If I knew the distance to Customs and from Security to the gate, I would have asked for a seat on the next available flight which was 4:30 pm. When I made my call at 6:00AM that morning. When I asked the agent at the Boston gate, he said that the 4:30 flight was already “OVERBOOKED!” I was put on an 8:30 PM flight and didn’t get home until MIDNIGHT. I then had to care for a barnful of hungry animals and didn’t get to bed until 2:00 AM.

From Montreal to Cincinnati the flight was perfect! Flight free and everyone was perfect and a pleasure to travel with. But from Casablanca to Montreal the flight crew were quite cold, unhelpful, also seemed to scold many passengers instead of simply educating or instructing them. There were a couple for sure I could describe but not name… i was really shocked bc my experience w air Canada is typically a good one at the very least. It seemed something was very much so I’m the air w the crew. The two older lady crew members and the male were amazing but the younger lady crew members w the exception of one were very clique-y and snarky, sassy

Seating wasn’t too cramped; I don’t understand how luggage bins get full if there are enough for each person. Shouldn’t there be room for the designated carry-on and personal item for each passenger at their seat? THEN, IF for some reason extra room is available for someone who prefers it, then shifts can occur. I’m simply saying it seems that I should have primary access to the storage bin at my seat and underneath in front of me. It was suggested that I go to the back of the plane to store my carry-on when I paid to have access to the first seat after 1st class. The additional stress and inconvenience could be avoided and I think all passengers and flight crew are interested in guidelines that are fair, clear, and reduce tension.

The flight was delayed for 2 hrs. We were changed to a smaller plane, which was shaking a lot.

Took forever to depart parked on the runway for ever after three departure delays. Could have walked...

It was 3 hours late and ruined my plans at destination. Also rough landing.

Flight got canceled last minute and rescheduled 3 days later, as if we do not have jobs and children to return to. 5+ hours on hold with customer support with no answer. We booked a different airline and spent 3x as much to escape Montreal bc of Air Canada. Still haven’t heard from them. Boooo

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

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