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Cheap flights from Seattle (BFI) to Basel (BSL)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Seattle (BFI) to Basel (BSL)

How to find the cheapest flight from Seattle (BFI) to Basel (BSL)
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How to find the cheapest flight from Seattle (BFI) to Basel (BSL)
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How to find the cheapest flight from Seattle (BFI) to Basel (BSL)
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Cheap flights from Seattle to Basel in August , September 2026

30 Aug - 22 Sep $ 1,418.00
BFI
Seattle
Air Excursions
3 STOPS
BSL
Basel
BSL
Basel
Air Excursions
2 STOPS
BFI
Seattle
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28 Aug - 22 Sep $ 1,434.00
BFI
Seattle
Air Excursions
3 STOPS
BSL
Basel
BSL
Basel
Air Excursions
2 STOPS
BFI
Seattle
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28 Aug - 29 Sep $ 1,459.00
BFI
Seattle
Air Excursions
3 STOPS
BSL
Basel
BSL
Basel
Air Excursions
2 STOPS
BFI
Seattle
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Last minute flights from Seattle to Basel

28 Aug - 01 Sep $ 1,641.00
BFI
Seattle
Air Excursions
3 STOPS
BSL
Basel
BSL
Basel
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
28 Aug - 01 Sep $ 1,650.00
BFI
Seattle
Air Excursions
3 STOPS
BSL
Basel
BSL
Basel
Air Excursions
3 STOPS
BFI
Seattle
Pick dates
28 Aug - 01 Sep $ 1,660.00
BFI
Seattle
Air Excursions
3 STOPS
BSL
Basel
BSL
Basel
Air Excursions
3 STOPS
BFI
Seattle
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One-way flights to Basel from Seattle

3:05 PM - 5:20 PM
easyJet
3 Stops
43h 5m
BFI - BSL
$ 607
Kiwi
Pick dates
2:35 PM - 8:35 AM
Norwegian Air Sweden
3 Stops
34h 50m
BFI - BSL
$ 623
Kiwi
Pick dates
8:15 AM - 1:55 PM
Norwegian Air Sweden
3 Stops
22h 30m
BFI - BSL
$ 841
Kiwi
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How to find the cheapest flight from Seattle (BFI) to Basel (BSL)

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