Cheap flights from Seattle, WA to Boston, United States (SEA - BOS)

As a rule, buying flight tickets from Seattle, WA to Boston expends a lot. Using our service of searching for cheap flight tickets, you will be able to save a significant sum of money! We will help tip to buy flight tickets from Seattle, WA to Boston at the most favorable prices.

Out service helps you to find tickets from Seattle, WA to Boston in the most reliable travel agencies and booking systems, including all the airline companies. We don't sell tickets and don't do any surcharges, we just find the best offers - you choose yourself where you want to buy flight tickets Seattle, WA - Boston at the best price!

We also recommend you to look through the prices for return tickets from Boston to Seattle, WA.

Airfares found by our users in the past 24 hours

The cheapest flight from Seattle, WA to Boston is C$397 on Southwest Airlines, departing on 21.06.2025 and returning on 24.06.2025.
The price for these dates could change. Use search to get the best price.
AirlineDeparture dateReturn datePrice
Southwest Airlines21.06.202524.06.2025from C$397

Average round-trip airfares from Seattle, WA to Boston by months

MonthRound-Trip
May 2025find now
June 202521.06 - 24.06from C$397
July 2025find now
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The price which were found by our clients for the latest several days. Given ticket prices could change. It's connected with the presence of flight tickets while booking.

Airlines are flying from Seattle, WA to Boston

Alaska AirlinesHawaiian AirlinesJetBlue Airways
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