Cheap Frontier Airlines flights St. Louis (STL) to Knoxville (TYS)

Cheap Frontier Airlines flights St. Louis (STL) to Knoxville (TYS)

Prices were available within the past 7 days and start at for one-way flights and $212 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Dec 3 - Sun, Dec 7

STL

St. Louis

TYS

Knoxville

$212 Roundtrip, found 23 hours ago

$212

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Wed, Dec 3 from St. Louis to Knoxville, returning Sun, Dec 7, priced at $212 found 23 hours ago