Earn point on your loyalty program!arrow arc left

Cheap flights from Atlanta (ATL) 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 Atlanta (ATL) to Seattle (BFI)

How to find the cheapest flight from Atlanta (ATL) 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 Atlanta (ATL) 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 Atlanta (ATL) 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 Atlanta to Seattle in August , September 2026

31 Aug - 17 Sep $ 687.00
ATL
Atlanta
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
ATL
Atlanta
Pick dates
31 Aug - 24 Sep $ 687.00
ATL
Atlanta
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
ATL
Atlanta
Pick dates
31 Aug - 24 Sep $ 708.00
ATL
Atlanta
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
ATL
Atlanta
Pick dates

Last minute flights from Atlanta to Seattle

27 Aug - 31 Aug $ 851.00
ATL
Atlanta
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
ATL
Atlanta
Pick dates
28 Aug - 31 Aug $ 857.00
ATL
Atlanta
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
ATL
Atlanta
Pick dates
28 Aug - 31 Aug $ 895.00
ATL
Atlanta
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
ATL
Atlanta
Pick dates

One-way flights to Seattle from Atlanta

10:52 AM - 9:25 PM
Air Excursions
2 Stops
14h 23m
ATL - BFI
$ 404
Kiwi
Pick dates
12:34 PM - 9:25 PM
Air Excursions
2 Stops
12h 41m
ATL - BFI
$ 426
Kiwi
Pick dates
12:34 PM - 9:25 PM
Air Excursions
2 Stops
12h 41m
ATL - BFI
$ 448
Kiwi
Pick dates

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