Earn point on your loyalty program!arrow arc left

Cheap flights from Louisville (SDF) 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 Louisville (SDF) to Seattle (BFI)

How to find the cheapest flight from Louisville (SDF) 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 Louisville (SDF) 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 Louisville (SDF) 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 Louisville to Seattle in June , July 2026

20 Jun - 01 Aug $ 1,025.00
SDF
Louisville
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
SDF
Louisville
Pick dates
20 Jun - 01 Aug $ 1,085.00
SDF
Louisville
Allegiant Air
3 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
SDF
Louisville
Pick dates
20 Jun - 02 Jul $ 1,104.00
SDF
Louisville
BREEZE
3 STOPS
BFI
Seattle
BFI
Seattle
BREEZE
3 STOPS
SDF
Louisville
Pick dates

Last minute flights from Louisville to Seattle

20 Jun - 02 Jul $ 1,149.00
SDF
Louisville
BREEZE
3 STOPS
BFI
Seattle
BFI
Seattle
BREEZE
3 STOPS
SDF
Louisville
Pick dates
27 Jun - 02 Jul $ 1,211.00
SDF
Louisville
BREEZE
3 STOPS
BFI
Seattle
BFI
Seattle
BREEZE
3 STOPS
SDF
Louisville
Pick dates
28 Jun - 02 Jul $ 1,284.00
SDF
Louisville
BREEZE
3 STOPS
BFI
Seattle
BFI
Seattle
BREEZE
3 STOPS
SDF
Louisville
Pick dates

One-way flights to Seattle from Louisville

6:55 PM - 9:25 AM
Air Excursions
3 Stops
42h 20m
SDF - BFI
$ 563
Kiwi
Pick dates
1:06 PM - 4:20 PM
Air Excursions
3 Stops
31h 4m
SDF - BFI
$ 570
Kiwi
Pick dates
1:06 PM - 4:20 PM
Air Excursions
3 Stops
31h 4m
SDF - BFI
$ 632
Kiwi
Pick dates

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