$121 Cheap Flights from Buffalo (BUF) to Montreal (YUL)

View $121 flight on Mon, May 12, 2025Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Montreal–Trudeau Intl. Airport (YUL)

Find available prices by choosing your travel dates.

Cheap Flights from Buffalo to Montreal (BUF-YUL)

Prices were available within the past 7 days and start at $121 for one-way flights and $267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, May 24 - Sun, May 25
BUF
Buffalo
YUL
Montreal
$267 Roundtrip, found 18 hours ago
$267
Roundtrip
found 18 hours ago
Select United flight, departing Sat, May 24 from Buffalo to Montreal, returning Sun, May 25, priced at $267 found 18 hours ago
Delta
Wed, May 14 - Sun, May 18
BUF
Buffalo
YUL
Montreal
$279 Roundtrip, found 1 day ago
$279
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, May 14 from Buffalo to Montreal, returning Sun, May 18, priced at $279 found 1 day ago
Delta
Mon, May 5 - Mon, May 12
BUF
Buffalo
YUL
Montreal
$280 Roundtrip, found 3 days ago
$280
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, May 5 from Buffalo to Montreal, returning Mon, May 12, priced at $280 found 3 days ago
American Airlines
Thu, Sep 11 - Tue, Sep 16
BUF
Buffalo
YUL
Montreal
$280 Roundtrip, found 18 hours ago
$280
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Thu, Sep 11 from Buffalo to Montreal, returning Tue, Sep 16, priced at $280 found 18 hours ago
Delta
Mon, May 5 - Mon, May 12
BUF
Buffalo
YUL
Montreal
$301 Roundtrip, found 3 days ago
$301
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, May 5 from Buffalo to Montreal, returning Mon, May 12, priced at $301 found 3 days ago
United
Wed, May 14 - Sun, May 18
BUF
Buffalo
YUL
Montreal
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select United flight, departing Wed, May 14 from Buffalo to Montreal, returning Sun, May 18, priced at $304 found 1 day ago
United
Wed, May 7 - Sat, May 10
BUF
Buffalo
YUL
Montreal
$305 Roundtrip, found 2 days ago
$305
Roundtrip
found 2 days ago
Select United flight, departing Wed, May 7 from Buffalo to Montreal, returning Sat, May 10, priced at $305 found 2 days ago
Delta
Sat, Sep 6 - Fri, Sep 12
BUF
Buffalo
YUL
Montreal
$310 Roundtrip, found 1 day ago
$310
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Sep 6 from Buffalo to Montreal, returning Fri, Sep 12, priced at $310 found 1 day ago
Air Canada
Wed, May 14 - Sun, May 18
BUF
Buffalo
YUL
Montreal
$311 Roundtrip, found 1 day ago
$311
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, May 14 from Buffalo to Montreal, returning Sun, May 18, priced at $311 found 1 day ago
WestJet
Fri, Jun 20 - Sun, Jun 22
BUF
Buffalo
YUL
Montreal
$537 Roundtrip, found 6 days ago
$537
Roundtrip
found 6 days ago
Select WestJet flight, departing Fri, Jun 20 from Buffalo to Montreal, returning Sun, Jun 22, priced at $537 found 6 days ago
Flights from Buffalo (BUF) to Montreal (YUL)
Origin airport
Buffalo Niagara Intl.
Destination airport
Pierre Elliott Trudeau Intl.
Airlines serving
Air Canada, American Airlines, Delta, United, WestJet
Roundtrip price
$255
Distance
302 mi

Buffalo to Montreal Flights

The cheapest times to fly from Buffalo to Montreal

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Buffalo to Montreal are during the month of May. You can find some of the cheapest flights from Buffalo to Montreal with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Buffalo to Montreal

Sunday is one of the best days to book for cheap flights from Buffalo to Montreal: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Buffalo to Montreal

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Buffalo to Montreal in 2025. You can also book with separate airlines for your outbound and return journeys, from $121 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Buffalo to Montreal flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Buffalo to Montreal airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Pierre Elliott Trudeau Intl. Airport (YUL) cost?
Discover the latest flight deals from BUF to YUL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BUF to YUL?
The cheapest flights from BUF to YUL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Buffalo Niagara Intl. Airport (BUF) to Pierre Elliott Trudeau Intl. Airport (YUL)?
Although Buffalo, NY (BUF-Buffalo Niagara Intl.) has no direct flights to Pierre Elliott Trudeau Intl. Airport (YUL), other airports have nonstop options. Traveling from Billy Bishop Toronto City Airport (YTZ) will get you to Montreal without any detours.
What is the cheapest airline that flies from BUF to YUL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from BUF to YUL. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Pierre Elliott Trudeau Intl. Airport (YUL)?
You’ll have to take a flight with a layover when traveling from Buffalo Niagara Intl. Airport (BUF) to Pierre Elliott Trudeau Intl. Airport (YUL). Direct flights don’t operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from BUF to YUL?
You’ll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Pierre Elliott Trudeau Intl. Airport (YUL)?
To avoid possible delays on the Buffalo Niagara Intl. Airport (BUF) to Pierre Elliott Trudeau Intl. Airport (YUL) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Buffalo Niagara Intl. Airport (BUF) to Pierre Elliott Trudeau Intl. Airport (YUL) last-minute?
Waiting until right before your break to book a flight from BUF to YUL generally means paying more. While you may come across some last-minute deals, there’s no guarantee. Keep your travel schedule open to boost your chances of landing a bargain.
Is it cheaper to book a BUF to YUL flight and hotel package?
Securing a BUF to YUL flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our wide range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Pierre Elliott Trudeau Intl. Airport (YUL)?
In most cases, you can modify or cancel your BUF to YUL flight. However, there may be additional fees, especially if you booked over 24 hours ago. Check your itinerary for the airline’s fees and rules on flight changes, or if you’d like further information, visit our Customer Service portal.

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*Available to One Key members.