This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — SYD
11 Jan — 18 Jan1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal to Sydney Kingsford Smith are usually found in September or April, booked 54 days in advance, depart on a Sunday or Wednesday and return on a Friday
Cheap flight deals from Montreal to Sydney
Enter your travel dates to find the best prices.
Cheapest flights from Montreal to Sydney
Explore the most affordable flight options available from Montreal to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 December 2025.
Wed 31/122:29 p.m.YUL - SYD
2 stops26h 31mAmerican Airlines
Tue 20/111:20 a.m.SYD - YUL
2 stops27h 24mAmerican Airlines
Deal found 11/12C$ 2,682
Fri 26/126:45 a.m.YUL - SYD
2 stops34h 15mMultiple Airlines
Fri 16/15:45 p.m.SYD - YUL
2 stops29h 20mMultiple Airlines
Deal found 11/12C$ 2,702
Wed 31/126:25 p.m.YUL - SYD
1 stop44h 30mAir Canada
Tue 20/111:20 a.m.SYD - YUL
2 stops27h 59mAir Canada
Deal found 11/12C$ 2,703
Sat 27/127:30 a.m.YUL - SYD
1 stop34h 05mAir Canada
Sun 18/111:20 a.m.SYD - YUL
2 stops35h 50mAir Canada
Deal found 11/12C$ 2,706
Sat 27/127:30 a.m.YUL - SYD
1 stop34h 05mAir Canada
Thu 15/111:20 a.m.SYD - YUL
1 stop24h 05mAir Canada
Deal found 11/12C$ 2,757
Sat 27/127:30 a.m.YUL - SYD
1 stop34h 05mAir Canada
Sat 17/18:30 a.m.SYD - YUL
2 stops26h 55mAir Canada
Deal found 11/12C$ 2,777
Mon 29/129:00 p.m.YUL - SYD
1 stop44h 35mAir Canada
Sun 18/111:20 a.m.SYD - YUL
2 stops35h 50mAir Canada
Deal found 11/12C$ 2,782
Tue 23/126:20 p.m.YUL - SYD
2 stops31h 20mAir Canada
Sun 18/111:20 a.m.SYD - YUL
2 stops35h 50mAir Canada
Deal found 11/12C$ 2,808
Best flights from Montreal to Sydney
Discover carefully curated flight deals from Montreal to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 12 December 2025.
Mon 2/21:02 p.m.YUL - SYD
2 stops27h 28mDelta
Mon 2/310:40 a.m.SYD - YUL
2 stops29h 19mDelta
Deal found 10/12C$ 1,325
Sun 22/27:00 a.m.YUL - SYD
2 stops31h 50mDelta
Sun 8/310:40 a.m.SYD - YUL
2 stops39h 57mDelta
Deal found 10/12C$ 1,325
Wed 18/312:55 p.m.YUL - SYD
2 stops27h 30mDelta
Tue 21/49:25 a.m.SYD - YUL
2 stops27h 45mDelta
Deal found 10/12C$ 1,325
Sun 1/36:00 a.m.YUL - SYD
2 stops34h 30mDelta
Mon 16/31:15 p.m.SYD - YUL
2 stops24h 56mDelta
Deal found 10/12C$ 1,325
Tue 20/17:00 a.m.YUL - SYD
2 stops33h 30mDelta
Tue 24/210:40 a.m.SYD - YUL
2 stops40h 45mDelta
Deal found 11/12C$ 1,327
Mon 2/36:00 p.m.YUL - SYD
2 stops44h 50mDelta
Tue 17/31:15 p.m.SYD - YUL
2 stops24h 56mDelta
Deal found 11/12C$ 1,327
Sun 8/27:00 a.m.YUL - SYD
2 stops31h 50mDelta
Wed 18/39:40 a.m.SYD - YUL
2 stops28h 31mDelta
Deal found 11/12C$ 1,328
Mon 26/16:00 a.m.YUL - SYD
2 stops34h 30mDelta
Tue 7/49:25 a.m.SYD - YUL
2 stops28h 34mDelta
Deal found 11/12C$ 1,328
Sat 24/12:40 p.m.YUL - SYD
2 stops48h 10mDelta
Thu 12/22:15 p.m.SYD - YUL
2 stops25h 44mDelta
Deal found 10/12C$ 1,375
Tue 27/17:00 a.m.YUL - SYD
2 stops31h 50mDelta
Sat 28/210:40 a.m.SYD - YUL
2 stops29h 19mDelta
Deal found 10/12C$ 1,375
Last-minute flights from Montreal to Sydney
Discover last-minute flight deals from Montreal to Sydney. Data last updated 12 December 2025 and is based on user searches.
Tue 13/18:25 a.m.YUL - SYD
2 stops32h 50mUnited Airlines
Tue 3/311:20 a.m.SYD - YUL
2 stops26h 22mUnited Airlines
Deal found 10/12C$ 1,805
Tue 20/17:00 a.m.YUL - SYD
2 stops31h 50mDelta
Tue 24/210:40 a.m.SYD - YUL
2 stops29h 19mDelta
Deal found 10/12C$ 1,325
Tue 20/15:50 p.m.YUL - SYD
1 stop23h 25mUnited Airlines
Tue 24/211:50 a.m.SYD - YUL
2 stops35h 42mUnited Airlines
Deal found 11/12C$ 1,808
Wed 21/19:15 a.m.YUL - SYD
2 stops29h 05mUnited Airlines
Wed 28/111:50 a.m.SYD - YUL
2 stops25h 27mUnited Airlines
Deal found 9/12C$ 1,473
Wed 21/17:00 a.m.YUL - SYD
2 stops33h 30mDelta
Sat 14/210:40 a.m.SYD - YUL
2 stops29h 19mDelta
Deal found 10/12C$ 1,513
Sat 24/12:40 p.m.YUL - SYD
2 stops48h 10mDelta
Thu 12/22:15 p.m.SYD - YUL
2 stops25h 44mDelta
Deal found 10/12C$ 1,375
Sat 24/12:40 p.m.YUL - SYD
2 stops48h 10mDelta
Fri 13/210:40 a.m.SYD - YUL
2 stops28h 30mDelta
Deal found 11/12C$ 1,376
Sun 25/16:00 a.m.YUL - SYD
2 stops32h 50mDelta
Sun 1/210:40 a.m.SYD - YUL
2 stops28h 32mDelta
Deal found 10/12C$ 1,601
Sun 25/18:25 a.m.YUL - SYD
2 stops32h 50mUnited Airlines
Sun 1/211:50 a.m.SYD - YUL
1 stop21h 00mUnited Airlines
Deal found 10/12C$ 1,820
Mon 26/17:00 a.m.YUL - SYD
2 stops31h 20mUnited Airlines
Sun 8/212:10 p.m.SYD - YUL
2 stops25h 07mUnited Airlines
Deal found 10/12C$ 1,474
One-way flights from Montreal to Sydney
Search for one-way flight options from Montreal to Sydney. Find affordable one-way fares based on user searches. Data last updated 12 December 2025.
Sun 18/17:00 a.m.YUL - SYD
2 stops33h 30mDelta
Deal found 10/12C$ 812
Wed 21/16:02 p.m.YUL - SYD
2 stops44h 48mDelta
Deal found 10/12C$ 887
Mon 26/16:45 a.m.YUL - SYD
3 stops55h 25mMultiple Airlines
Deal found 10/12C$ 906
Sat 7/38:05 a.m.YUL - SYD
3 stops33h 30mAir Canada
Deal found 10/12C$ 1,201
Thu 29/17:30 p.m.YUL - SYD
3 stops57h 05mMultiple Airlines
Deal found 11/12C$ 1,259
Wed 25/28:50 p.m.YUL - SYD
1 stop42h 00mQatar Airways
Deal found 10/12C$ 1,305
Thu 15/17:30 p.m.YUL - SYD
3 stops56h 15mMultiple Airlines
Deal found 10/12C$ 1,327
Wed 21/18:50 p.m.YUL - SYD
1 stop42h 00mQatar Airways
Deal found 11/12C$ 1,517
Mon 26/18:50 p.m.YUL - SYD
1 stop42h 00mQatar Airways
Deal found 10/12C$ 1,524
Wed 25/28:50 a.m.YUL - SYD
3 stops32h 45mAir Canada
Deal found 10/12C$ 1,538
Mon 26/16:00 p.m.YUL - SYD
1 stop45h 00mUnited Airlines
Deal found 10/12C$ 1,540
Find flight deals from Montreal to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 December 2025.
Customize your flight search to find flights from Montreal to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
Use the filters below to find and compare flights from Montreal to Sydney that are best for you.
Fly from
Montreal
Fly to
Sydney
Route
Depart
Return
Price
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Mon 2/2
1:02 p.m.-8:30 a.m.
2 stops27h 28m
Sydney Kingsford Smith
Mon 2/3
10:40 a.m.-11:59 p.m.
2 stops29h 19m
C$ 1,325
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Sun 22/2
7:00 a.m.-6:50 a.m.
2 stops31h 50m
Sydney Kingsford Smith
Sun 8/3
10:40 a.m.-10:37 a.m.
2 stops39h 57m
C$ 1,325
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Wed 18/3
12:55 p.m.-7:25 a.m.
2 stops27h 30m
Sydney Kingsford Smith
Tue 21/4
9:25 a.m.-11:10 p.m.
2 stops27h 45m
C$ 1,325
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Sun 1/3
6:00 a.m.-8:30 a.m.
2 stops34h 30m
Sydney Kingsford Smith
Mon 16/3
1:15 p.m.-11:11 p.m.
2 stops24h 56m
C$ 1,325
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Tue 20/1
7:00 a.m.-8:30 a.m.
2 stops33h 30m
Sydney Kingsford Smith
Tue 24/2
10:40 a.m.-11:25 a.m.
2 stops40h 45m
C$ 1,327
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Mon 2/3
6:00 p.m.-6:50 a.m.
2 stops44h 50m
Sydney Kingsford Smith
Tue 17/3
1:15 p.m.-11:11 p.m.
2 stops24h 56m
C$ 1,327
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Sun 8/2
7:00 a.m.-6:50 a.m.
2 stops31h 50m
Sydney Kingsford Smith
Wed 18/3
9:40 a.m.-11:11 p.m.
2 stops28h 31m
C$ 1,328
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Mon 26/1
6:00 a.m.-8:30 a.m.
2 stops34h 30m
Sydney Kingsford Smith
Tue 7/4
9:25 a.m.-11:59 p.m.
2 stops28h 34m
C$ 1,328
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Sat 24/1
2:40 p.m.-6:50 a.m.
2 stops48h 10m
Sydney Kingsford Smith
Thu 12/2
2:15 p.m.-11:59 p.m.
2 stops25h 44m
C$ 1,375
MontrealSydney
YUL - SYD
YULSYD
Montreal Pierre Elliott Trudeau Intl
Tue 27/1
7:00 a.m.-6:50 a.m.
2 stops31h 50m
Sydney Kingsford Smith
Sat 28/2
10:40 a.m.-11:59 p.m.
2 stops29h 19m
C$ 1,375
Flights are sorted by cheapest round-trip flights first.
Deals found on 10/12
Showing 1-10 of 18 results
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Best time to book a flight from Montreal to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Montreal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Montreal to Sydney
How far ahead should I book a flight from Montreal to Sydney?
Use this chart to determine the optimal time to book a round-trip flight from Montreal to Sydney. Price data was last updated on 5 December 2025.
The best time to book flights from Montreal to Sydney is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Montreal to Sydney?
Currently, March is the cheapest month in which you can book a flight from Montreal to Sydney (average of C$ 376). Flying from Montreal to Sydney in November is currently the most expensive (average of C$ 1,725). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from YMQ to SYD?
Find hourly flight availability from Montreal to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 16% on flights from Montreal to Sydney by exploring options for tickets in the evening.
What is the cheapest day to fly from Montreal to Sydney?
Use this chart to determine the cheapest time to fly round-trip from Montreal to Sydney. Price data was last updated on 16 December 2024.
Travelers seeking maximum savings on their Montreal to Sydney flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost to fly round-trip from Montreal to Sydney?
What’s the top layover airport for flights from Montreal to Sydney?
Share of one-stop round-trip flights from Montreal to Sydney chosen by Cheapflights users in the past 12 months, using the same layover each way.
Vancouver (YVR) – chosen by Cheapflights users on 85% of one-stop itineraries from Montreal to Sydney on Cheapflights.
What’s the cheapest layover airport for flights from Montreal to Sydney?
Average round-trip fare for 1-stop flights from Montreal to Sydney, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 342.
What’s the fastest layover option from Montreal to Sydney?
Shortest average travel time for 1-stop one-way flights from Montreal to Sydney, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Toronto (YYZ) have the shortest average one-way travel time for 1-stop routes: 8h 51m.
Which airport typically offers the quickest layover for flights from Montreal to Sydney?
Average layover duration for 1-stop one-way flights from Montreal to Sydney, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Toronto (YYZ) offer the fastest connection on this route, with an average layover time of 1h 50m.
Reviews of airlines servicing Sydney
Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 12 December 2025.
Get a feel of what it's like to fly with Porter Airlines,Air New Zealand, andQantas Airways from Montreal to Sydney by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
It's good. Planes are new and fresh. WiFi is best and stands out
Related info for your journey
Find useful and relevant information for your journey from Montreal to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Sydney from Montreal?
If you book a flight to Sydney from Montreal, you will be flying to Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 7.5 km from the centre of Sydney. There are 0 flights from Montreal to Kingsford Smith per day from 8 different airlines.
How long is the flight from Montreal to Sydney?
For as low as C$ 1,325, Delta can have you in Sydney from Montreal in 27h 28m. The distance from Montreal to Sydney is about 16011 km.
What are the cheapest airlines flying from Montreal to Sydney round-trip?
Currently priced at C$ 295, Porter Airlines will fly you from Montreal to Sydney and back. In addition to Porter Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from WestJet and Delta - these airlines can fly you to your destination from C$ 329 and C$ 450, respectively. These flights start at 86% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Montreal to Sydney one-way?
The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as C$ 1,070. However, be on the lookout for offers from Qatar Airways and United Airlines, as they are both options that can get you from Montreal to Sydney for a low price.
Can I find deals for flights from Montreal to Sydney that include hotel bookings?
Yes. In addition to deals on Montreal to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Montreal to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montreal to Sydney.
Can I find deals for business class flights from Montreal to Sydney?
Yes. Cheapflights offers flight deals from Montreal to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Montreal to Sydney?
Currently, March is the cheapest month in which you can book a flight from Montreal to Sydney (average of C$ 376). Flying from Montreal to Sydney in November is currently the most expensive (average of C$ 1,725). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Penrith
Parramatta
Browse thousands of different options on Cheapflights for your next trip
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Fly from Montreal to Sydney on these airlines
Choose from the following airlines for your flight from Montreal to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Browse through other flights departing from Montreal. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Discover the top 8 airlines that operate flights from Montreal to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 December 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Montreal to Sydney?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Montreal to Sydney. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Montreal to Sydney?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from Montreal.
Can Cheapflights find flights from Montreal to Sydney with no change fees?
Need flexible booking options for your flight to Sydney from Montreal? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Montreal to Sydney become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Montreal today and book when prices fit your budget.
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