Cheap Frontier Airlines flights Knoxville (TYS) to Seattle (SEA)

Cheap Frontier Airlines flights Knoxville (TYS) to Seattle (SEA)

Prices were available within the past 7 days and start at for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jun 15 - Tue, Jun 23

TYS

Knoxville

SEA

Seattle

$240 Roundtrip, found 1 day ago

$240

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 15 from Knoxville to Seattle, returning Tue, Jun 23, priced at $240 found 1 day ago

Mon, Jun 15 - Thu, Jun 18

TYS

Knoxville

SEA

Seattle

$405 Roundtrip, found 1 day ago

$405

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 15 from Knoxville to Seattle, returning Thu, Jun 18, priced at $405 found 1 day ago

Mon, Jun 15 - Sun, Jun 21

TYS

Knoxville

SEA

Seattle

$505 Roundtrip, found 1 day ago

$505

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Jun 15 from Knoxville to Seattle, returning Sun, Jun 21, priced at $505 found 1 day ago