$285 Cheap Frontier Airlines flights Sioux Falls (FSD) to Seattle (SEA)

$285 Cheap Frontier Airlines flights Sioux Falls (FSD) to Seattle (SEA)

Prices were available within the past 7 days and start at $285 for one-way flights and $311 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jul 11 - Thu, Jul 24

FSD

Sioux Falls

SEA

Seattle

$311 Roundtrip, found 3 days ago

$311

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Sioux Falls to Seattle, returning Thu, Jul 24, priced at $311 found 3 days ago

Fri, Jul 11 - Fri, Jul 25

FSD

Sioux Falls

SEA

Seattle

$315 Roundtrip, found 3 days ago

$315

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Sioux Falls to Seattle, returning Fri, Jul 25, priced at $315 found 3 days ago

Fri, Jul 11 - Wed, Jul 23

FSD

Sioux Falls

SEA

Seattle

$329 Roundtrip, found 3 days ago

$329

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Sioux Falls to Seattle, returning Wed, Jul 23, priced at $329 found 3 days ago

Fri, Jul 11 - Mon, Jul 21

FSD

Sioux Falls

SEA

Seattle

$406 Roundtrip, found 3 days ago

$406

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Sioux Falls to Seattle, returning Mon, Jul 21, priced at $406 found 3 days ago

Fri, Jul 11 - Sat, Jul 19

FSD

Sioux Falls

SEA

Seattle

$429 Roundtrip, found 3 days ago

$429

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Sioux Falls to Seattle, returning Sat, Jul 19, priced at $429 found 3 days ago

Fri, Jul 11 - Sun, Jul 20

FSD

Sioux Falls

SEA

Seattle

$444 Roundtrip, found 3 days ago

$444

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Fri, Jul 11 from Sioux Falls to Seattle, returning Sun, Jul 20, priced at $444 found 3 days ago

Wed, Jul 16 - Thu, Jul 24

FSD

Sioux Falls

SEA

Seattle

$461 Roundtrip, found 3 days ago

$461

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Jul 16 from Sioux Falls to Seattle, returning Thu, Jul 24, priced at $461 found 3 days ago

Wed, Jul 16 - Fri, Jul 25

FSD

Sioux Falls

SEA

Seattle

$465 Roundtrip, found 3 days ago

$465

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Wed, Jul 16 from Sioux Falls to Seattle, returning Fri, Jul 25, priced at $465 found 3 days ago