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Cheap flights from Phoenix (PHX) 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 Phoenix (PHX) to Seattle (BFI)

How to find the cheapest flight from Phoenix (PHX) to Seattle (BFI)
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How to find the cheapest flight from Phoenix (PHX) to Seattle (BFI)
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How to find the cheapest flight from Phoenix (PHX) to Seattle (BFI)
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Cheap flights from Phoenix to Seattle in June , July 2026

25 Jun - 30 Jul $ 676.00
PHX
Phoenix
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
PHX
Phoenix
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25 Jun - 30 Jul $ 737.00
PHX
Phoenix
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
PHX
Phoenix
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25 Jun - 16 Jul $ 764.00
PHX
Phoenix
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
PHX
Phoenix
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Last minute flights from Phoenix to Seattle

25 Jun - 01 Jul $ 799.00
PHX
Phoenix
Frontier Airlines
1 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
3 STOPS
PHX
Phoenix
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25 Jun - 01 Jul $ 826.00
PHX
Phoenix
Frontier Airlines
1 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
PHX
Phoenix
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29 Jun - 01 Jul $ 833.00
PHX
Phoenix
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
PHX
Phoenix
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One-way flights to Seattle from Phoenix

3:41 PM - 11:10 AM
Air Excursions
1 Stops
20h 19m
PHX - BFI
$ 338
Kiwi
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3:41 PM - 9:25 PM
Air Excursions
1 Stops
6h 34m
PHX - BFI
$ 396
Kiwi
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12:14 PM - 9:25 PM
Air Excursions
2 Stops
10h 1m
PHX - BFI
$ 403
Kiwi
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How to find the cheapest flight from Phoenix (PHX) to Seattle (BFI)

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