$109 Cheap JetBlue Airways flights Seattle (SEA) to Boston (BOS)

Grab cheap round-trip JetBlue Airways flights from $217 from SEA to BOS by organizing your results from “Price (lowest to highest)” on Expedia. Or search for options from $109 for a one-way trip.**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 most affordable months to fly to Boston with JetBlue Airways. You could also find great deals on return and one-way tickets in February.

For cheap JetBlue Airways fares from Seattle - Tacoma Intl. Airport (SEA) to Logan Intl. Airport (BOS), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the overall cost. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**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.

Easily travel from Seattle - Tacoma Intl. Airport (SEA) to Logan Intl. Airport (BOS) on one of JetBlue Airways’s 7 weekly direct flights. Make use of our “Nonstop” and “Airline” filters to find the JetBlue Airways flight that’ll arrive at BOS at your preferred time.

It takes around 5h 10m to travel nonstop from Seattle - Tacoma Intl. Airport (SEA) to Logan Intl. Airport (BOS) with JetBlue Airways.

Jetting off from SEA at 3:20PM UTC-8, the first JetBlue Airways flight to BOS arrives at 11:30PM UTC-5. Flying early means you’re less likely to encounter delays or cancellations.* After something later? The last JetBlue Airways flight from SEA to BOS departs at 3:30PM UTC-8 and touches down at 11:40PM UTC-5.*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.

Logan Intl. Airport (BOS) is the main Boston gateway for JetBlue Airways flights from Seattle - Tacoma Intl. Airport (SEA).

Chances are you’ll catch an Airbus A320 family for your JetBlue Airways flight from Seattle - Tacoma Intl. Airport (SEA) to Logan Intl. Airport (BOS). However, you could end up on another aircraft if there are operational changes.

Changes are generally free within 24 hours of booking, but your airline may charge you after that time. For further information about modifying your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to adjust your plans without additional charges, check the “Changes included” and “No cancel fee” filters when organizing your next adventure.