Earn point on your loyalty program!arrow arc left

Cheap flights from Kalispell (FCA) 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 Kalispell (FCA) to Seattle (BFI)

How to find the cheapest flight from Kalispell (FCA) 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 Kalispell (FCA) 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 Kalispell (FCA) 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 Kalispell to Seattle in July , August 2026

31 Jul - 28 Aug $ 1,173.00
FCA
Kalispell
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
FCA
Kalispell
Pick dates
31 Jul - 31 Aug $ 1,182.00
FCA
Kalispell
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
FCA
Kalispell
Pick dates
31 Jul - 28 Aug $ 1,241.00
FCA
Kalispell
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
FCA
Kalispell
Pick dates

Last minute flights from Kalispell to Seattle

27 Jul - 01 Aug $ 1,765.00
FCA
Kalispell
Sun Country Airlines
3 STOPS
BFI
Seattle
BFI
Seattle
Sun Country Airlines
2 STOPS
FCA
Kalispell
Pick dates
27 Jul - 01 Aug $ 1,849.00
FCA
Kalispell
Sun Country Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Sun Country Airlines
2 STOPS
FCA
Kalispell
Pick dates
26 Jul - 01 Aug $ 1,937.00
FCA
Kalispell
Sun Country Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Sun Country Airlines
2 STOPS
FCA
Kalispell
Pick dates

One-way flights to Seattle from Kalispell

4:58 PM - 9:35 AM
Air Excursions
2 Stops
42h 27m
FCA - BFI
$ 720
Kiwi
Pick dates
11:00 AM - 8:25 PM
Air Excursions
2 Stops
11h 15m
FCA - BFI
$ 844
Kiwi
Pick dates
10:30 AM - 9:25 PM
Air Excursions
2 Stops
12h 45m
FCA - BFI
$ 880
Kiwi
Pick dates

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