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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 April , May 2026

30 Apr - 07 May $ 665.00
PHX
Phoenix
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
PHX
Phoenix
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23 Apr - 07 May $ 686.00
PHX
Phoenix
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
PHX
Phoenix
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23 Apr - 28 May $ 703.00
PHX
Phoenix
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
PHX
Phoenix
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Last minute flights from Phoenix to Seattle

16 Apr - 30 Apr $ 670.00
PHX
Phoenix
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
PHX
Phoenix
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23 Apr - 30 Apr $ 671.00
PHX
Phoenix
Allegiant Air
1 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
PHX
Phoenix
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23 Apr - 30 Apr $ 675.00
PHX
Phoenix
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
1 STOPS
PHX
Phoenix
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One-way flights to Seattle from Phoenix

4:03 PM - 6:45 AM
Air Excursions
1 Stops
15h 32m
PHX - BFI
$ 356
Kiwi
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4:03 PM - 6:45 AM
Air Excursions
1 Stops
15h 32m
PHX - BFI
$ 373
Kiwi
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9:00 AM - 4:05 PM
Air Excursions
2 Stops
7h 55m
PHX - BFI
$ 378
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.