Flights from Boston to Seattle from $ 287*
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1 Passenger, Economy
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today
today
Featured daily fares for flights from Boston (BOS) to Seattle (SEA)
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More United deals on Boston (BOS) to Seattle (SEA) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Boston (BOS) | Seattle (SEA) | Roundtrip | Economy | 06/03/26 - 06/06/26 | from $ 287 Viewed: 18 hours ago |
| Boston (BOS) | Seattle (SEA) | Roundtrip | Economy | 09/10/26 - 09/14/26 | from $ 307 Viewed: 1 day ago |
| Boston (BOS) | Seattle (SEA) | Roundtrip | Economy | 05/28/26 - 05/31/26 | from $ 307 Viewed: 1 day ago |
| Boston (BOS) | Seattle (SEA) | Roundtrip | Economy | 05/30/26 - 06/03/26 | from $ 318 Viewed: 18 hours ago |
| Boston (BOS) | Seattle (SEA) | Roundtrip | Economy | 05/27/26 - 06/03/26 | from $ 318 Viewed: 18 hours ago |
| Boston (BOS) | Seattle (SEA) | Roundtrip | Economy | 05/30/26 - 06/02/26 | from $ 322 Viewed: 18 hours ago |
| Boston (BOS) | Seattle (SEA) | Roundtrip | Economy | 05/30/26 - 06/06/26 | from $ 322 Viewed: 18 hours ago |
| Boston (BOS) | Seattle (SEA) | Roundtrip | Economy | 06/03/26 - 06/10/26 | from $ 322 Viewed: 18 hours ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
