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 $288 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 8 - Sun, Sep 14

TYS

Knoxville

SEA

Seattle

$288 Roundtrip, found 1 day ago

$288

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Sep 8 from Knoxville to Seattle, returning Sun, Sep 14, priced at $288 found 1 day ago

Thu, Sep 4 - Sun, Sep 14

TYS

Knoxville

SEA

Seattle

$328 Roundtrip, found 1 day ago

$328

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Sep 4 from Knoxville to Seattle, returning Sun, Sep 14, priced at $328 found 1 day ago

Thu, Sep 4 - Sun, Sep 7

TYS

Knoxville

SEA

Seattle

$418 Roundtrip, found 1 day ago

$418

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Sep 4 from Knoxville to Seattle, returning Sun, Sep 7, priced at $418 found 1 day ago