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Cheap flights from Sioux Falls (FSD) to Seattle (BFI)

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How to find the cheapest flight from Sioux Falls (FSD) to Seattle (BFI)

How to find the cheapest flight from Sioux Falls (FSD) to Seattle (BFI)
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How to find the cheapest flight from Sioux Falls (FSD) to Seattle (BFI)
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How to find the cheapest flight from Sioux Falls (FSD) to Seattle (BFI)
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Cheap flights from Sioux Falls to Seattle in November , December 2025

28 Nov - 31 Dec $ 1,088.00
FSD
Sioux Falls
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
FSD
Sioux Falls
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21 Nov - 31 Dec $ 1,138.00
FSD
Sioux Falls
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
FSD
Sioux Falls
Pick dates
23 Nov - 31 Dec $ 1,146.00
FSD
Sioux Falls
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
FSD
Sioux Falls
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Last minute flights from Sioux Falls to Seattle

28 Nov - 01 Dec $ 1,188.00
FSD
Sioux Falls
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
FSD
Sioux Falls
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28 Nov - 01 Dec $ 1,235.00
FSD
Sioux Falls
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
FSD
Sioux Falls
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23 Nov - 01 Dec $ 1,248.00
FSD
Sioux Falls
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
FSD
Sioux Falls
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One-way flights to Seattle from Sioux Falls

8:26 PM - 5:45 PM
Air Excursions
2 Stops
24h 9m
FSD - BFI
$ 616
Kiwi
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8:26 PM - 5:45 PM
Air Excursions
2 Stops
24h 9m
FSD - BFI
$ 658
Kiwi
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11:46 AM - 5:35 AM
Air Excursions
2 Stops
20h 39m
FSD - BFI
$ 666
Kiwi
Pick dates

How to find the cheapest flight from Sioux Falls (FSD) to Seattle (BFI)

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