$142 Cheap Delta flights Baltimore (BWI) to Montreal (YUL)

Landing cheap one-way Delta Air Lines flights from BWI to YUL from $142 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $295 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the cheapest months to get away to Montreal with Delta Air Lines. You could also find fantastic deals on one-way and round-trip fares in February.

Getting the best Delta Air Lines deals from BWI to YUL often comes down to timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. To top it off, you can pocket 17% on average by buying your fare on a Sunday compared to a Friday, which is often the most expensive day to book.* It’s smart to kick off your flight search about one month before you want to travel.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Click on our “Nonstop” filter when browsing for direct Delta Air Lines flights from BWI to YUL. You can also compare other carriers servicing the same direct route.

Browse Delta Air Lines’s earliest flights from BWI to YUL by selecting our “Early Morning” and “Morning” filters. Not only will you get to where you’re going sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Catch a Delta Air Lines flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Montreal, and you’ll likely arrive at Pierre Elliott Trudeau Intl. Airport (YUL). This is the airline’s primary hub here.

Traveling from BWI to YUL with Delta Air Lines comes with a range of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That’s in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s usually possible to reschedule or cancel your flight, although additional charges may apply if you made your booking more than 24 hours ago. Want to keep your options open? Make use of Expedia’s “Changes included” and “No cancel fee” filters to find flights that won’t charge extra if you need to revise your plans. To modify your booking, visit “Trips,” select your flight and click on “Manage Booking” for further information.