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 December 2025 , January 2026

22 Dec - 09 Jan $ 1,069.00
PIA
Peoria
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
PIA
Peoria
Pick dates
22 Dec - 16 Jan $ 1,109.00
PIA
Peoria
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
PIA
Peoria
Pick dates
22 Dec - 05 Jan $ 1,109.00
PIA
Peoria
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
PIA
Peoria
Pick dates

Last minute flights from Peoria to Seattle

22 Dec - 01 Jan $ 1,423.00
PIA
Peoria
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
PIA
Peoria
Pick dates
20 Dec - 01 Jan $ 1,425.00
PIA
Peoria
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
PIA
Peoria
Pick dates
19 Dec - 01 Jan $ 1,506.00
PIA
Peoria
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
PIA
Peoria
Pick dates

One-way flights to Seattle from Peoria

4:08 PM - 5:45 PM
Air Excursions
2 Stops
28h 27m
PIA - BFI
$ 574
Kiwi
Pick dates
9:52 PM - 4:05 PM
Air Excursions
2 Stops
21h 3m
PIA - BFI
$ 587
Kiwi
Pick dates
3:13 PM - 3:05 PM
Air Excursions
2 Stops
26h 42m
PIA - BFI
$ 656
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.