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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 July , August 2026

27 Jul - 17 Aug $ 766.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
Pick dates
27 Jul - 10 Aug $ 773.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
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27 Jul - 14 Aug $ 807.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
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Last minute flights from Idaho Falls to Seattle

27 Jul - 31 Jul $ 867.00
IDA
Idaho Falls
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
Pick dates
27 Jul - 31 Jul $ 1,085.00
IDA
Idaho Falls
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
IDA
Idaho Falls
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One-way flights to Seattle from Idaho Falls

3:50 PM - 9:25 PM
Air Excursions
1 Stops
7h 25m
IDA - BFI
$ 455
Kiwi
Pick dates
3:50 PM - 8:25 PM
Air Excursions
1 Stops
6h 25m
IDA - BFI
$ 517
Kiwi
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10:47 PM - 6:45 PM
Air Excursions
3 Stops
21h 48m
IDA - BFI
$ 673
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.