Flights From Boston (BOS) to SeaTac (SEA)

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Selected fares from Boston to SeaTac

The cheapest prices found with in the last 7 days for return flights were CA $275 and CA $152 for one-way flights to SeaTac for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sat., 7 Dec. - Mon., 9 Dec.
BOS
Logan Intl.
SEA
Seattle - Tacoma Intl.
CA $275 Roundtrip, found 6 days ago
CA $275
Roundtrip
found 6 days ago
Select JetBlue Airways flight, departing Sat., 7 Dec. from Logan Intl. to Seattle - Tacoma Intl., returning Mon., 9 Dec., priced at CA $275 found 6 days ago
Delta
Sat., 14 Dec. - Sat., 18 Jan.
BOS
Logan Intl.
SEA
Seattle - Tacoma Intl.
CA $277 Roundtrip, found 4 days ago
CA $277
Roundtrip
found 4 days ago
Select Delta flight, departing Sat., 14 Dec. from Logan Intl. to Seattle - Tacoma Intl., returning Sat., 18 Jan., priced at CA $277 found 4 days ago
Alaska Airlines
Wed., 11 Dec. - Sun., 15 Dec.
BOS
Logan Intl.
SEA
Seattle - Tacoma Intl.
CA $291 Roundtrip, found 5 days ago
CA $291
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed., 11 Dec. from Logan Intl. to Seattle - Tacoma Intl., returning Sun., 15 Dec., priced at CA $291 found 5 days ago