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Cheap flights from Idaho Falls (IDA) 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 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 May , June 2026

29 May - 15 Jun $ 568.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
Pick dates
29 May - 12 Jun $ 573.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
Pick dates
29 May - 26 Jun $ 603.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
Pick dates

Last minute flights from Idaho Falls to Seattle

29 May - 01 Jun $ 724.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
Pick dates
25 May - 01 Jun $ 762.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
Pick dates
22 May - 01 Jun $ 838.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
Pick dates

One-way flights to Seattle from Idaho Falls

6:39 PM - 9:25 PM
Air Excursions
1 Stops
4h 36m
IDA - BFI
$ 312
Kiwi
Pick dates
6:39 PM - 9:25 PM
Air Excursions
1 Stops
4h 36m
IDA - BFI
$ 350
Kiwi
Pick dates
6:39 PM - 9:25 PM
Air Excursions
1 Stops
4h 36m
IDA - BFI
$ 418
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.