Earn point on your loyalty program!arrow arc left

Cheap flights from Austin (AUS) 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 Austin (AUS) to Seattle (BFI)

How to find the cheapest flight from Austin (AUS) 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 Austin (AUS) 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 Austin (AUS) 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 Austin to Seattle in July , August 2026

24 Jul - 28 Aug $ 827.00
AUS
Austin
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
AUS
Austin
Pick dates
24 Jul - 21 Aug $ 831.00
AUS
Austin
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
AUS
Austin
Pick dates
24 Jul - 27 Aug $ 831.00
AUS
Austin
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
AUS
Austin
Pick dates

Last minute flights from Austin to Seattle

29 Jul - 01 Aug $ 1,005.00
AUS
Austin
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
AUS
Austin
Pick dates
27 Jul - 01 Aug $ 1,008.00
AUS
Austin
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
AUS
Austin
Pick dates
24 Jul - 01 Aug $ 1,009.00
AUS
Austin
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
AUS
Austin
Pick dates

One-way flights to Seattle from Austin

6:30 AM - 6:45 PM
Air Excursions
2 Stops
15h 5m
AUS - BFI
$ 506
Kiwi
Pick dates
12:47 PM - 9:25 PM
Air Excursions
2 Stops
11h 28m
AUS - BFI
$ 509
Kiwi
Pick dates
12:47 PM - 8:25 PM
Air Excursions
2 Stops
10h 28m
AUS - BFI
$ 511
Kiwi
Pick dates

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