Earn point on your loyalty program!arrow arc left

Cheap flights from Missoula (MSO) 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 Missoula (MSO) to Seattle (BFI)

How to find the cheapest flight from Missoula (MSO) 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 Missoula (MSO) 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 Missoula (MSO) 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 Missoula to Seattle in January , February 2026

23 Jan - 09 Feb $ 992.00
MSO
Missoula
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
MSO
Missoula
Pick dates
23 Jan - 06 Feb $ 1,039.00
MSO
Missoula
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
MSO
Missoula
Pick dates
23 Jan - 08 Feb $ 1,330.00
MSO
Missoula
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
MSO
Missoula
Pick dates

Last minute flights from Missoula to Seattle

23 Jan - 02 Feb $ 1,093.00
MSO
Missoula
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
MSO
Missoula
Pick dates

One-way flights to Seattle from Missoula

10:53 AM - 7:35 AM
Air Excursions
3 Stops
22h 32m
MSO - BFI
$ 572
Kiwi
Pick dates
10:53 AM - 5:45 PM
Air Excursions
3 Stops
56h 42m
MSO - BFI
$ 1,369
Kiwi
Pick dates

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