$142 Cheap Flights from Baltimore (BWI) to Montreal (YUL)

View $142 flight on Thu, May 15, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Baltimore to Montreal (BWI-YUL)

Prices were available within the past 7 days and start at $142 for one-way flights and $342 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Jun 10 - Wed, Jun 18
BWI
Baltimore
YUL
Montreal
$342 Roundtrip, found 2 hours ago
$342
Roundtrip
found 2 hours ago
Select Delta flight, departing Tue, Jun 10 from Baltimore to Montreal, returning Wed, Jun 18, priced at $342 found 2 hours ago
Delta
Mon, Jul 14 - Fri, Jul 18
BWI
Baltimore
YUL
Montreal
$351 Roundtrip, found 1 hour ago
$351
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Jul 14 from Baltimore to Montreal, returning Fri, Jul 18, priced at $351 found 1 hour ago
Delta
Mon, Jun 23 - Tue, Sep 23
BWI
Baltimore
YUL
Montreal
$352 Roundtrip, found 6 days ago
$352
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Jun 23 from Baltimore to Montreal, returning Tue, Sep 23, priced at $352 found 6 days ago
Delta
Thu, Jun 5 - Sat, Jun 7
BWI
Baltimore
YUL
Montreal
$353 Roundtrip, found 3 days ago
$353
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Jun 5 from Baltimore to Montreal, returning Sat, Jun 7, priced at $353 found 3 days ago
Delta
Thu, May 15 - Thu, May 22
BWI
Baltimore
YUL
Montreal
$355 Roundtrip, found 1 hour ago
$355
Roundtrip
found 1 hour ago
Select Delta flight, departing Thu, May 15 from Baltimore to Montreal, returning Thu, May 22, priced at $355 found 1 hour ago
Delta
Wed, May 21 - Tue, Jun 10
BWI
Baltimore
YUL
Montreal
$356 Roundtrip, found 4 days ago
$356
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, May 21 from Baltimore to Montreal, returning Tue, Jun 10, priced at $356 found 4 days ago
WestJet
Sat, May 10 - Wed, May 14
BWI
Baltimore
YUL
Montreal
$361 Roundtrip, found 5 days ago
$361
Roundtrip
found 5 days ago
Select WestJet flight, departing Sat, May 10 from Baltimore to Montreal, returning Wed, May 14, priced at $361 found 5 days ago
Sun Country Airlines
Wed, Jul 23 - Sat, Jul 26
BWI
Baltimore
YUL
Montreal
$443 Roundtrip, found 1 day ago
$443
Roundtrip
found 1 day ago
Select Sun Country Airlines flight, departing Wed, Jul 23 from Baltimore to Montreal, returning Sat, Jul 26, priced at $443 found 1 day ago
American Airlines
Sun, May 25 - Tue, Jul 1
BWI
Baltimore
YUL
Montreal
$469 Roundtrip, found 9 hours ago
$469
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Sun, May 25 from Baltimore to Montreal, returning Tue, Jul 1, priced at $469 found 9 hours ago
United
Tue, Jul 1 - Tue, Jul 15
BWI
Baltimore
YUL
Montreal
$621 Roundtrip, found 5 hours ago
$621
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Jul 1 from Baltimore to Montreal, returning Tue, Jul 15, priced at $621 found 5 hours ago
Flights from Baltimore (BWI) to Montreal (YUL)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Pierre Elliott Trudeau Intl.
Airlines serving
American Airlines, Delta, United, WestJet
Roundtrip price
$271
Distance
458 mi

Baltimore to Montreal Flights

The cheapest times to fly from Baltimore 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 Baltimore to Montreal are during the month of June. You can find some of the cheapest flights from Baltimore to Montreal with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Baltimore to Montreal

Sunday is one of the best days to book for cheap flights from Baltimore 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 Baltimore 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 Baltimore to Montreal in 2025. You can also book with separate airlines for your outbound and return journeys, from $142 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 Baltimore 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 Baltimore 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Pierre Elliott Trudeau Intl. Airport (YUL) cost?
Discover the latest flight deals from BWI 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 BWI to YUL?
The cheapest flights from BWI 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Pierre Elliott Trudeau Intl. Airport (YUL)?
You can’t fly direct from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Pierre Elliott Trudeau Intl. Airport (YUL). However, you can easily reach Montreal without any layovers by taking off from Ronald Reagan Washington National Airport (DCA).
What is the cheapest airline that flies from BWI to YUL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from BWI to YUL. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Pierre Elliott Trudeau Intl. Airport (YUL)?
You’ll need to hop on a flight with a layover when traveling from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) 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 find an option that works for you.
What day of the week has the most flights from BWI to YUL?
Typically you’ll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Pierre Elliott Trudeau Intl. Airport (YUL)?
To avoid potential delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Pierre Elliott Trudeau Intl. Airport (YUL) route, aim to fly before 3 PM. Later departures have a 22% higher chance of being canceled.**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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Pierre Elliott Trudeau Intl. Airport (YUL) last-minute?
Booking your ticket from BWI to YUL shortly before your trip is generally more expensive. But if you’re flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a BWI to YUL flight and hotel package?
Booking a BWI to YUL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of stays and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Pierre Elliott Trudeau Intl. Airport (YUL)?
Usually, it’s possible to reschedule or cancel your BWI to YUL flight. However, if it’s been more than 24 hours since booking, additional fees may apply. Refer to your airline’s policies in your itinerary to see what changes are possible and if any costs are involved. You’ll also find more information on our Customer Service portal.

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*Available to One Key members.