YUL - SYD

C$ 853 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 Montreal to Sydney departing on 13/6. 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Montreal to Sydney.
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Everything you should know

Cheapest round-trip
C$ 1,447
Typical prices: C$ 2,389-C$ 1,722
Delta
Tue 26/5Tue 9/6
YUL - SYD • 2 stops
Cheapest one-way flights
C$ 853
Typical prices: C$ 1,480-C$ 3,027
Delta
Sat 13/6
YUL - SYD • 2 stops
Top airlines
Cheapest • from C$ 1,447 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Direct flights
Not available
There are currently no direct flights between Montreal and Sydney. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg C$ 477 (round-trip)
Shortest trip • 8h 40m (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 23% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 13% 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 round-trip 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 round-trip flight deals from Montreal to Sydney

Tue, 26 May - Tue, 9 Jun
Delta Logo
7:00 a.m. - 6:50 a.m.
YUL
-
SYD
33h 50m
2 stops
Delta Logo
9:15 a.m. - 11:55 p.m.
SYD
-
YUL
28h 40m
2 stops
C$ 1,447Delta
Sun, 26 Jul - Sun, 16 Aug
Delta Logo
6:47 p.m. - 6:50 a.m.
YUL
-
SYD
46h 03m
2 stops
Delta Logo
9:15 a.m. - 11:39 a.m.
SYD
-
YUL
40h 24m
2 stops
C$ 1,448Delta
Sun, 24 May - Sun, 7 Jun
Delta Logo
6:00 a.m. - 6:50 a.m.
YUL
-
SYD
34h 50m
2 stops
Delta Logo
9:15 a.m. - 11:42 p.m.
SYD
-
YUL
28h 27m
2 stops
C$ 1,451Delta
Mon, 20 Jul - Wed, 5 Aug
Delta Logo
6:47 p.m. - 6:50 a.m.
YUL
-
SYD
46h 03m
2 stops
Delta Logo
9:15 a.m. - 11:40 p.m.
SYD
-
YUL
28h 25m
2 stops
C$ 1,452Delta
Mon, 1 Jun - Fri, 12 Jun
Delta Logo
12:40 p.m. - 6:50 a.m.
YUL
-
SYD
28h 10m
2 stops
Delta Logo
9:15 a.m. - 11:43 a.m.
SYD
-
YUL
40h 28m
2 stops
C$ 1,518Delta
Sun, 31 May - Fri, 12 Jun
Delta Logo
12:49 p.m. - 6:50 a.m.
YUL
-
SYD
28h 01m
2 stops
Delta Logo
9:15 a.m. - 11:28 p.m.
SYD
-
YUL
52h 13m
2 stops
C$ 1,521Delta
Wed, 22 Jul - Tue, 4 Aug
Delta Logo
5:10 p.m. - 6:50 a.m.
YUL
-
SYD
47h 40m
2 stops
Delta Logo
9:15 a.m. - 11:35 p.m.
SYD
-
YUL
28h 20m
2 stops
C$ 1,523Delta
Thu, 4 Jun - Thu, 11 Jun
Delta Logo
7:00 a.m. - 6:50 a.m.
YUL
-
SYD
33h 50m
2 stops
Delta Logo
9:15 a.m. - 11:55 p.m.
SYD
-
YUL
28h 40m
2 stops
C$ 1,588Delta
Thu, 4 Jun - Fri, 12 Jun
Delta Logo
7:10 a.m. - 6:50 a.m.
YUL
-
SYD
33h 40m
2 stops
Delta Logo
9:15 a.m. - 11:28 p.m.
SYD
-
YUL
52h 13m
2 stops
C$ 1,592Delta
Thu, 4 Jun - Thu, 11 Jun
Delta Logo
7:00 a.m. - 6:50 a.m.
YUL
-
SYD
33h 50m
2 stops
Delta Logo
9:15 a.m. - 11:55 p.m.
SYD
-
YUL
28h 40m
2 stops
C$ 1,593Delta
Booking Insights

KAYAK's insights & trends for Montreal to Sydney flights

Get data-powered insights and trends into flights from Montreal 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?

This analysis is based on the cheapest round-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 May.

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 C$ 1,940 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is C$ 2,645 and C$ 2,565 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 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flightC$ 853
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (3% more expensive on average)
Flight from Montreal to Sydney

When to book flights from Montreal to Sydney

Are your dates flexible? Find out the best times to travel from Montreal to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 C$ 853 for a one-way ticket and C$ 1,447 for a round-trip.

  • 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?

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

  • What is the most popular layover when flying to Sydney from Montreal?

    Vancouver is the most popular layover city among KAYAK users travelling from Montreal to Sydney.

  • Which is the best airline for flights from Montreal to Sydney, Air New Zealand or Porter Airlines?

    The two airlines most popular with KAYAK users for flights from Montreal to Sydney are Air New Zealand and Porter Airlines. With an average price for the route of C$ 2,282 and an overall rating of 8.0, Air New Zealand is the most popular choice. Porter Airlines is also a great choice for the route, with an average price of C$ 378 and an overall rating of 8.0.

  • 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 round-trip 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 5 airlines flying from Montreal 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 Montreal 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.
8.0
Air New ZealandOverall score based on 640 reviews
7.4Entertainment
8.5Crew
7.4Food
8.2Boarding
7.9Comfort
Airline reviews

Great first time experience with Air New Zealand and loved it. The flight crew was extremely friendly and provided great service.

10.0 ExcellentManish, May 2026
AKL - ZQN
Read more Air New Zealand reviews

Great first time experience with Air New Zealand and loved it. The flight crew was extremely friendly and provided great service.

Needed more leg room. Leg rest and entertainment system box took up a lot of space and I'm not tall. Breakfast was good. Poor quality of the entertainment options.

The flight was smooth and on time. Entertainment options were lacking and there was no food, other than some very boring snacks.

A better selection of entertainment would have been nice. I found nothing that appealed to me as a middle-aged traveler. The flight attendants were gracious, helpful, and attentive. It also would have been nice to have more bathrooms as the flight was full and the plane was big.

Appreciated the ability to get an earlier flight home after flying in from in from Japan. No problem with boarding or crew service. The limited choice of snacks, compared to previous years. Aircraft seats seem to be getting harder and more uncomfortable all the time. Overall, happy to be home

Great service. Food could be improved but overall a very good airline

This flight was the second leg of a trip that began in Auckland, New Zealand. I was unable to find a way to select seats in advance. The boarding passes we were given in Auckland did not have seat assignments for the second flight. There was no way to check on it until personnel showed up at the gate in Los Angeles, immediately before boarding time. The flight was overbooked by one, and since I was traveling with my sister, we needed two seats. We waited in considerable anxiety for everyone else to board and when one person did not show up, we had to take whatever was left. At least we finally got on the flight although we were the very last to board. We were not able to sit together, of course.

Nothing better than Air New Zealand. Top scores in every category.

All good, except entertainment system could have been better. More choices.

I was not even on that flight and did not even book a ticket. Kayak did a phenomenal job

Round trip flight to Canada and back to the US was smooth and efficient.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

We departed and landed early which was a nice surprise. The boarding process was slow.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

The return flight was great. The flight out to CDG was overbooked, and we were forced to check in a small carry-on at the get immediately before the flight, before getting out the stuff we needed on the plane.

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

Timing, quality of service, promptness and courtesy of the staff

Very poor No information given to why we turned around.. No one at airport to help

Amazing airline accommodations. The cabins were so great. The food was very good and the flight attendants were so nice. Made a 15 hour flight seem easy.

Impressive as always. It is the airline of my choice, The dessert on the 2nd flight DOH-IAH was somewhat dry (the cake with cream etc) Check-in and boarding experience was fantastic, with the exception of CCU airport where chk-in staff refused to help with aisle seats stating the flight was full and accommodations were beyond him. Once I boarded there were plenty of available aisles. I was disappointed that this could not be done by self during online chk-in nor at the airport. Nothing more to add. Overall a good experience, TY QTR

In the business class it was everything wonderful. However in the economy is a hell. BTW. When I asked to search for tickets, I ordered business and I was offered options with economy, that was not clear in the order, so I could've acted faster to rectify it.

Nice airline. I was in a really weird seat which had extra leg room, but no basket or stowage. And the people next to me were pretty noisy during the flight, so it was hard to rest. I wish staff came around to pick up trash more often as I had no where to put it except my lap or the floor.

You are the best, keep up the good work. Thank you for allowing me and my family to fly with comfort.i am waiting for upgrade some day. Thanks again

Looks like a local flight. Food was horrible. No entertainment system.

I wish I knew in advance that the connecting flight was by indigo air

I appreciated the vailability of wheelchair services for persons with mobility issues all the way up to the aircraft. What could be better would be the food choices.

Initial booking was confusing and had to get new CC issued.

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

Good but airlines getting smaller. I didn't like the meal but the service was fine. Flight was fine and luggage arrived. So good.

They were fast and I like how they used to entertainment system to play video about the safety.

Flight delayed. Connecting to night flight was stressful but made it. Jusr in time. Ran.88Flight was fine.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Given I (and I’m assuming most people) have both carry in and a personal item included in their fare, I find it very unfair that on neither of my flights I was able to use the overhead for my small backpack because they were completely rammed with luggage, people personal items, jackets, hats and other items. So the only item I brought in had to be stuffed under my seat while they had their leg room and sat comfortable with all of their items in the overhead. This has to stop because I was uncomfortable on both flights when I only had one smaller item that could not be checked due to its contents (medication etc). Plenty of people could have checked theirs but chose not to and then took up the space allotment for 2 people.

Flight attendants had a little attitude. Food tastes no good.

From pre boarding to flight attendant, crew and baggage handler, excellent. Didn’t lost my luggage like West jet.

Another good flight experience with Air Canada. The business section did not feature the full length sleeping arrangement, but this was a shorter trip. The food was excellent. But the flight crew was truly top tier: friendly, cheerful, helpful at all the right times. Air Canada truly outshines all U.S. carriers.

Everything could be better, the worst is the crew, looks like they are not happy in the work. Air Canada is downhill for years, every flight looks worst. Hope they can fix the issues, by now, just flying AC in toutes with no other alternatives. Shame.

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.

Everything you need to know for your flight from Montreal to Sydney

Information on your arrival and departure airports