HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pierre Elliott Trudeau Intl

$165+ Cheap flights from Buffalo (BUF) to Pierre Elliott Trudeau Intl (YUL)

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — YUL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Buffalo to Pierre Elliott Trudeau Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Buffalo to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Pierre Elliott Trudeau Intl (YUL). 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 July 29, 2025.

Round-trip from

$372
(Kiwi.com)

One-way from

$165
(Kiwi.com)

Popular in

June

Cheapest in

December

Average price

$521
From Buffalo to Montreal Pierre Elliott Trudeau Intl
Search Deals
One-way flight from Buffalo to Montreal Pierre Elliott Trudeau Intl
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($250 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Buffalo to Pierre Elliott Trudeau Intl

Cheapest flights from Buffalo to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Buffalo to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:59 pmBUF - YUL
1 stop19h 21mMultiple Airlines
Fri 9/196:45 amYUL - BUF
2 stops11h 29mMultiple Airlines
Deal found 7/28$372
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:25 amBUF - YUL
1 stop10h 17mAmerican Airlines
Tue 9/25:29 pmYUL - BUF
1 stop19h 01mAmerican Airlines
Deal found 7/27$420
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:30 pmBUF - YUL
1 stop7h 27mDelta
Sun 10/54:55 pmYUL - BUF
1 stop6h 21mDelta
Deal found 7/27$597
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1010:55 amBUF - YUL
1 stop10h 34mUnited Airlines
Wed 9/178:20 amYUL - BUF
1 stop8h 32mUnited Airlines
Deal found 7/27$602
This WestJet deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:20 amBUF - YUL
1 stop5h 38mWestJet
Tue 9/26:45 amYUL - BUF
2 stops17h 12mWestJet
Deal found 7/27$753
This Air Canada deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:55 pmBUF - YUL
2 stops7h 55mAir Canada
Wed 10/89:15 amYUL - BUF
2 stops11h 58mAir Canada
Deal found 7/27$1,080

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Pierre Elliott Trudeau Intl 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 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Buffalo to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Buffalo

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 9/12

6:59 pm-2:20 pm

1 stop19h 21m

Montreal Pierre Elliott Trudeau Intl

Fri 9/19

6:45 am-6:14 pm

2 stops11h 29m

$372

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Tue 8/26

6:25 am-4:42 pm

1 stop10h 17m

Montreal Pierre Elliott Trudeau Intl

Tue 9/2

5:29 pm-12:30 pm

1 stop19h 01m

$420

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Thu 10/2

2:30 pm-9:57 pm

1 stop7h 27m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

4:55 pm-11:16 pm

1 stop6h 21m

$597

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Wed 9/10

10:55 am-9:29 pm

1 stop10h 34m

Montreal Pierre Elliott Trudeau Intl

Wed 9/17

8:20 am-4:52 pm

1 stop8h 32m

$602

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Tue 8/26

6:20 am-11:58 am

1 stop5h 38m

Montreal Pierre Elliott Trudeau Intl

Tue 9/2

6:45 am-11:57 pm

2 stops17h 12m

$753

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Thu 9/25

5:55 pm-1:50 am

2 stops7h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 10/8

9:15 am-9:13 pm

2 stops11h 58m

$1,080

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 9/12

6:59 pm-2:20 pm

1 stop19h 21m

$165

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Sat 9/13

6:03 am-7:25 pm

1 stop13h 22m

$176

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Sat 9/13

8:00 pm-10:09 am

2 stops14h 09m

$265

BuffaloMontreal

BUF - YUL

BUFYUL

Buffalo

Fri 9/12

5:33 pm-9:46 am

2 stops16h 13m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 11 results
1
2

Best time to book a flight from Buffalo to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Buffalo 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.

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get insights into the airlines that provide service to Pierre Elliott Trudeau Intl. 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 Pierre Elliott Trudeau Intl. Reviews last updated July 29, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Buffalo to Montreal Pierre Elliott Trudeau Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
WestJet
7.2
Good
2,973 reviews
Delta
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Air Canada
7.1
Good
9,822 reviews
Delta
8.0
Very good
7,977 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Pierre Elliott Trudeau Intl. 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 from for flights from Buffalo to Montreal Pierre Elliott Trudeau Intl?

    Buffalo (BUF), located 8.3 mi from the city center, is the airport you fly out of when you book flights from Buffalo to Montreal Pierre Elliott Trudeau Intl. 1 airline have flights from Buffalo to Montreal Pierre Elliott Trudeau Intl on a regular basis. Booking flights from Buffalo to Montreal Pierre Elliott Trudeau Intl should not be difficult; the airport handles an average of 0 outbound flights to Montreal Pierre Elliott Trudeau Intl per day.

  • What are the cheapest airlines flying from Buffalo to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    Cheapflights users have booked flights from Buffalo to Montreal Pierre Elliott Trudeau Intl Airport round-trip from $420. Other airlines that can offer you cheap pricing are Delta, from $597, and United Airlines, from $602. American Airlines is currently priced 14% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Buffalo to Montreal Pierre Elliott Trudeau Intl Airport one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $176. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Buffalo to Montreal Pierre Elliott Trudeau Intl Airport for a low price.

  • Can I find deals for flights from Buffalo to Pierre Elliott Trudeau Intl that include hotel bookings?

    Yes. In addition to deals on Buffalo to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Pierre Elliott Trudeau Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Pierre Elliott Trudeau Intl.

  • Can I find deals for business class flights from Buffalo to Pierre Elliott Trudeau Intl?

    Yes. Cheapflights offers flight deals from Buffalo to Pierre Elliott Trudeau Intl 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 Buffalo to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Buffalo to Montreal Pierre Elliott Trudeau Intl Airport (average of $270). Flying from Buffalo to Montreal Pierre Elliott Trudeau Intl Airport in July is currently the most expensive (average of $409). 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.

See more FAQs

Traveling to a place near Montreal Pierre Elliott Trudeau Intl Airport?

Book flights to Montreal Pierre Elliott Trudeau Intl Airport if you plan to visit one of these locations
Longueuil
Laval
Brossard
Sherbrooke
Dorval

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Buffalo to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Newark to Pierre Elliott Trudeau Intl flights
White Plains to Pierre Elliott Trudeau Intl flights
Albany to Pierre Elliott Trudeau Intl flights
Rochester to Pierre Elliott Trudeau Intl flights
Stewart to Pierre Elliott Trudeau Intl flights
Syracuse to Pierre Elliott Trudeau Intl flights
Islip to Pierre Elliott Trudeau Intl flights
Ithaca to Pierre Elliott Trudeau Intl flights
Binghamton to Pierre Elliott Trudeau Intl flights
Elmira to Pierre Elliott Trudeau Intl flights
Plattsburgh to Pierre Elliott Trudeau Intl flights
Rutland to Pierre Elliott Trudeau Intl flights
Saranac Lake to Pierre Elliott Trudeau Intl flights

Top airline flying from Buffalo to Pierre Elliott Trudeau Intl

Discover the top airline that operate flights from Buffalo to Pierre Elliott Trudeau Intl. 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 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$340Average$496FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.