Cheap flights from Sioux Falls (FSD) to Seattle (BFI)
Know your dates, get live prices in secondsHow 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 September , October 2026
30 Sep - 30 Oct
$ 1,520.00
FSD
Sioux Falls
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
FSD
Sioux Falls
30 Sep - 30 Oct
$ 1,555.00
FSD
Sioux Falls
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
FSD
Sioux Falls
30 Sep - 30 Oct
$ 1,600.00
FSD
Sioux Falls
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
FSD
Sioux Falls
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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