Cheap Flights from Boston to Seattle Starting at $137

Helping travelers to find the best flight offers

Cheapest flights from Boston to Seattle

Fly from Boston to Seattle with confidence — our search scans over 700 airlines, more than 50 agencies, and 5+ top booking systems to uncover the best prices, schedules, and travel conditions for your trip. Compare nonstop and connecting options in seconds and lock in the itinerary that fits your timing and budget.

Airfare from Boston to Seattle by month

Airlines operating on route

Direct Flights from Boston to Seattle

Fly nonstop from Boston to Seattle for the fastest, most convenient way to cross the country—perfect when you value time and comfort. While connecting options can sometimes be cheaper, a direct flight gets you to the Pacific Northwest sooner and with fewer hassles, making it ideal for business trips or weekend escapes.

Schedule of direct flights from Boston to Seattle

A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Boston to Seattle:

Boston airports overview

Seattle airports overview

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

Special offers and sales on air tickets from Boston to Seattle

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

Alternative routes