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Cheap flights from Idaho Falls (IDA) to Seattle (BFI)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Idaho Falls (IDA) to Seattle (BFI)

How to find the cheapest flight from Idaho Falls (IDA) to Seattle (BFI)
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How to find the cheapest flight from Idaho Falls (IDA) to Seattle (BFI)
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How to find the cheapest flight from Idaho Falls (IDA) to Seattle (BFI)
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Cheap flights from Idaho Falls to Seattle in September , October 2026

25 Sep - 26 Oct $ 892.00
IDA
Idaho Falls
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
IDA
Idaho Falls
Pick dates
18 Sep - 23 Oct $ 949.00
IDA
Idaho Falls
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
IDA
Idaho Falls
Pick dates
18 Sep - 26 Oct $ 977.00
IDA
Idaho Falls
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
IDA
Idaho Falls
Pick dates

Last minute flights from Idaho Falls to Seattle

25 Sep - 02 Oct $ 952.00
IDA
Idaho Falls
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
IDA
Idaho Falls
Pick dates
18 Sep - 02 Oct $ 1,025.00
IDA
Idaho Falls
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
IDA
Idaho Falls
Pick dates
18 Sep - 02 Oct $ 1,037.00
IDA
Idaho Falls
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
IDA
Idaho Falls
Pick dates

One-way flights to Seattle from Idaho Falls

6:45 PM - 4:20 PM
Air Excursions
3 Stops
47h 25m
IDA - BFI
$ 528
Kiwi
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6:51 PM - 9:35 AM
Air Excursions
2 Stops
40h 34m
IDA - BFI
$ 613
Kiwi
Pick dates
6:21 PM - 4:05 PM
Air Excursions
3 Stops
23h 34m
IDA - BFI
$ 798
Kiwi
Pick dates

How to find the cheapest flight from Idaho Falls (IDA) to Seattle (BFI)

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