Earn point on your loyalty program!arrow arc left

Cheap flights from Peoria (PIA) to Seattle (BFI)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Peoria (PIA) to Seattle (BFI)

How to find the cheapest flight from Peoria (PIA) 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 Peoria (PIA) 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 Peoria (PIA) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Peoria to Seattle in February , March 2026

28 Feb - 30 Mar $ 1,125.00
PIA
Peoria
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
PIA
Peoria
Pick dates
28 Feb - 27 Mar $ 1,125.00
PIA
Peoria
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
PIA
Peoria
Pick dates
21 Feb - 30 Mar $ 1,218.00
PIA
Peoria
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
PIA
Peoria
Pick dates

One-way flights to Seattle from Peoria

8:24 PM - 5:35 AM
Air Excursions
2 Stops
36h 1m
PIA - BFI
$ 601
Kiwi
Pick dates
8:32 PM - 5:35 AM
Air Excursions
2 Stops
35h 53m
PIA - BFI
$ 694
Kiwi
Pick dates
8:41 PM - 7:35 AM
Air Excursions
3 Stops
37h 44m
PIA - BFI
$ 1,234
Kiwi
Pick dates

How to find the cheapest flight from Peoria (PIA) to Seattle (BFI)

Related info for your journey
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 Peoria (PIA) 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 Peoria (PIA) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.