Earn point on your loyalty program!arrow arc left

Cheap flights from Seattle (BFI) to Denver (DEN)

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 Seattle (BFI) to Denver (DEN)

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

Cheap flights from Seattle to Denver in June , July 2026

30 Jun - 08 Jul $ 640.00
BFI
Seattle
Air Excursions
1 STOPS
DEN
Denver
DEN
Denver
Air Excursions
1 STOPS
BFI
Seattle
Pick dates
30 Jun - 28 Jul $ 640.00
BFI
Seattle
Air Excursions
1 STOPS
DEN
Denver
DEN
Denver
Air Excursions
1 STOPS
BFI
Seattle
Pick dates
30 Jun - 14 Jul $ 640.00
BFI
Seattle
Air Excursions
1 STOPS
DEN
Denver
DEN
Denver
Air Excursions
1 STOPS
BFI
Seattle
Pick dates

Last minute flights from Seattle to Denver

25 Jun - 30 Jun $ 739.00
BFI
Seattle
Air Excursions
1 STOPS
DEN
Denver
DEN
Denver
Air Excursions
1 STOPS
BFI
Seattle
Pick dates
24 Jun - 30 Jun $ 739.00
BFI
Seattle
Air Excursions
1 STOPS
DEN
Denver
DEN
Denver
Air Excursions
1 STOPS
BFI
Seattle
Pick dates
26 Jun - 30 Jun $ 757.00
BFI
Seattle
Air Excursions
1 STOPS
DEN
Denver
DEN
Denver
Air Excursions
1 STOPS
BFI
Seattle
Pick dates

One-way flights to Denver from Seattle

8:05 AM - 5:20 PM
Frontier Airlines
1 Stops
11h 56m
BFI - DEN
$ 315
Kiwi
Pick dates
5:25 AM - 12:26 PM
Frontier Airlines
1 Stops
9h 43m
BFI - DEN
$ 415
Kiwi
Pick dates
8:05 AM - 12:26 PM
Frontier Airlines
1 Stops
7h 3m
BFI - DEN
$ 432
Kiwi
Pick dates

How to find the cheapest flight from Seattle (BFI) to Denver (DEN)

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 Seattle (BFI) to Denver (DEN)
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 Seattle (BFI) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.