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

Finding cheap one-way JetBlue Airways flights from BOS to SEA from $109 on Expedia is easy — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly round-trip fares from $217 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.

Search for one-way or return flights to Seattle in January or February. You could find an affordable fare with JetBlue Airways during these off-peak months.

Look for cheap JetBlue Airways flights from Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA) one to three months before your departure date. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the ideal day to book a domestic flight is generally Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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.

Book a seat on one of JetBlue Airways’s 7 weekly direct flights from Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA). To view available options, enter your origin, destination and dates and hit search. Next, apply the “Nonstop” and “Airline” filters.

Leave Logan Intl. Airport (BOS) for Seattle - Tacoma Intl. Airport (SEA) on a nonstop JetBlue Airways flight, and you’ll be airborne for approximately 6h 25m.

Taking off from BOS at 10:45AM UTC-5, the first JetBlue Airways flight to SEA lands at 2:10PM UTC-8. Traveling early means you’ll be less likely to experience delays.* Not a morning person? The last JetBlue Airways flight from BOS to SEA departs at 10:45AM UTC-5 and touches down at 2:10PM UTC-8.*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.

JetBlue Airways flights from Logan Intl. Airport (BOS) to Seattle land at Seattle - Tacoma Intl. Airport (SEA). This is the main entry point here.

Chances are you’ll be flying on an Airbus A320 family for your JetBlue Airways flight from Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA). However, you could end up on a different aircraft for operational reasons.

Changes are usually free within 24 hours of booking, but your airline may charge a fee after that. For more details about altering your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to update your itinerary without additional costs, tick the “Changes included” and “No cancel fee” filters when organizing your next trip.