Earn point on your loyalty program!arrow arc left

Cheap flights from Miami (MIA) 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 Miami (MIA) to Seattle (BFI)

How to find the cheapest flight from Miami (MIA) 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 Miami (MIA) 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 Miami (MIA) 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 Miami to Seattle in August , September 2026

31 Aug - 25 Sep $ 777.00
MIA
Miami
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
MIA
Miami
Pick dates
28 Aug - 25 Sep $ 791.00
MIA
Miami
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
MIA
Miami
Pick dates
27 Aug - 25 Sep $ 791.00
MIA
Miami
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
MIA
Miami
Pick dates

Last minute flights from Miami to Seattle

28 Aug - 31 Aug $ 1,015.00
MIA
Miami
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
MIA
Miami
Pick dates
27 Aug - 31 Aug $ 1,015.00
MIA
Miami
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
MIA
Miami
Pick dates
25 Aug - 31 Aug $ 1,071.00
MIA
Miami
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
MIA
Miami
Pick dates

One-way flights to Seattle from Miami

6:00 AM - 9:25 PM
Air Excursions
2 Stops
19h 15m
MIA - BFI
$ 499
Kiwi
Pick dates
6:00 AM - 8:25 PM
Air Excursions
2 Stops
18h 15m
MIA - BFI
$ 508
Kiwi
Pick dates
6:00 AM - 9:25 PM
Air Excursions
2 Stops
19h 15m
MIA - BFI
$ 508
Kiwi
Pick dates

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