$159 Cheap Frontier Airlines flights Austin (AUS) to Knoxville (TYS)

$159 Cheap Frontier Airlines flights Austin (AUS) to Knoxville (TYS)

Prices were available within the past 7 days and start at $159 for one-way flights and $306 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Sep 25 - Sun, Sep 28

AUS

Austin

TYS

Knoxville

$306 Roundtrip, found 14 hours ago

$306

Roundtrip

found 14 hours ago

Select Frontier Airlines flight, departing Thu, Sep 25 from Austin to Knoxville, returning Sun, Sep 28, priced at $306 found 14 hours ago