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Cheap flights from Boston (BOS) to Seattle (BFI)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Boston (BOS) to Seattle (BFI)

How to find the cheapest flight from Boston (BOS) to Seattle (BFI)
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How to find the cheapest flight from Boston (BOS) to Seattle (BFI)
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How to find the cheapest flight from Boston (BOS) to Seattle (BFI)
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Cheap flights from Boston to Seattle in July , August 2026

30 Jul - 27 Aug $ 1,030.00
BOS
Boston
JetBlue Airways
1 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
1 STOPS
BOS
Boston
Pick dates
29 Jul - 27 Aug $ 1,030.00
BOS
Boston
JetBlue Airways
1 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
1 STOPS
BOS
Boston
Pick dates
30 Jul - 24 Aug $ 1,030.00
BOS
Boston
JetBlue Airways
1 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
1 STOPS
BOS
Boston
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Last minute flights from Boston to Seattle

29 Jul - 31 Jul $ 1,307.00
BOS
Boston
JetBlue Airways
1 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
1 STOPS
BOS
Boston
Pick dates
28 Jul - 31 Jul $ 1,307.00
BOS
Boston
JetBlue Airways
1 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
1 STOPS
BOS
Boston
Pick dates
27 Jul - 31 Jul $ 1,307.00
BOS
Boston
JetBlue Airways
1 STOPS
BFI
Seattle
BFI
Seattle
JetBlue Airways
1 STOPS
BOS
Boston
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One-way flights to Seattle from Boston

9:55 AM - 4:05 PM
Air Excursions
1 Stops
10h
BOS - BFI
$ 683
Kiwi
Pick dates
9:55 AM - 4:05 PM
Air Excursions
1 Stops
10h
BOS - BFI
$ 683
Kiwi
Pick dates
9:55 AM - 4:05 PM
Air Excursions
1 Stops
10h
BOS - BFI
$ 683
Kiwi
Pick dates

How to find the cheapest flight from Boston (BOS) to Seattle (BFI)

Related info for your journey
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How to find the cheapest flight from Boston (BOS) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.