Domestic Fare of the Day: Boston to Seattle $227 round-trip, incl. all taxes

Fly from Boston to Seattle for $227 round-trip, including all taxes, on United.

We found seats departing BOS on November 13, and returning from SEA on November 18. Other dates are also available for travel through November 21.

Fares will vary slightly depending on travel dates. For booking info, see our Fare Details.