Earn point on your loyalty program!arrow arc left

Cheap flights from Salt Lake City (SLC) 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 Salt Lake City (SLC) to Seattle (BFI)

How to find the cheapest flight from Salt Lake City (SLC) 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 Salt Lake City (SLC) 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 Salt Lake City (SLC) 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 Salt Lake City to Seattle in December 2025 , January 2026

30 Dec - 16 Jan $ 1,012.00
SLC
Salt Lake City
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SLC
Salt Lake City
Pick dates
30 Dec - 15 Jan $ 1,039.00
SLC
Salt Lake City
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SLC
Salt Lake City
Pick dates
30 Dec - 19 Jan $ 1,044.00
SLC
Salt Lake City
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SLC
Salt Lake City
Pick dates

Last minute flights from Salt Lake City to Seattle

26 Dec - 01 Jan $ 1,082.00
SLC
Salt Lake City
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SLC
Salt Lake City
Pick dates
30 Dec - 01 Jan $ 1,139.00
SLC
Salt Lake City
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SLC
Salt Lake City
Pick dates
30 Dec - 01 Jan $ 1,196.00
SLC
Salt Lake City
Frontier Airlines
2 STOPS
BFI
Seattle
BFI
Seattle
Frontier Airlines
2 STOPS
SLC
Salt Lake City
Pick dates

One-way flights to Seattle from Salt Lake City

8:58 PM - 3:05 PM
Air Excursions
2 Stops
19h 57m
SLC - BFI
$ 580
Kiwi
Pick dates
8:58 PM - 3:05 PM
Air Excursions
2 Stops
19h 57m
SLC - BFI
$ 580
Kiwi
Pick dates
9:07 AM - 6:45 PM
Air Excursions
2 Stops
11h 28m
SLC - BFI
$ 638
Kiwi
Pick dates

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