$124 Cheap Delta flights Boston (BOS) to Toronto (YYZ)

Finding cheap one-way Delta Air Lines flights from BOS to YYZ from $124 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $267 for your next getaway.**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 Toronto with Delta Air Lines. You could also find fantastic deals on one-way and round-trip tickets in February.

Landing the best Delta Air Lines deals from BOS to YYZ often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, 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 a good idea to start searching for flights about one month before your travel dates.*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.

Simply enter your dates, press search and select “Nonstop” on Expedia to browse any direct flights from BOS to YYZ with Delta Air Lines or other airlines.

To find the earliest departure from BOS to YYZ with Delta Air Lines, sort your results by “Early Morning” and “Morning.” Choosing an early flight generally means you’re less likely to experience cancellations.**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.

Take a Delta Air Lines flight from Logan Intl. Airport (BOS) to Toronto, and you’ll likely come in to Pearson Intl. Airport (YYZ). This is the airline’s main hub in this city.

Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a top choice for many passengers flying from BOS to YYZ. Also, if you’re a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of booking, but your airline may charge you after that time. For more information about altering your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your itinerary without extra charges, check the “Changes included” or “No cancel fee” filter when organizing your trip.