Cheap Frontier Airlines flights Phoenix (PHX) to Knoxville (TYS)

Cheap Frontier Airlines flights Phoenix (PHX) to Knoxville (TYS)

Prices were available within the past 7 days and start at for one-way flights and $570 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jun 22 - Sun, Jun 29

PHX

Phoenix

TYS

Knoxville

$570 Roundtrip, found 1 day ago

$570

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Jun 22 from Phoenix to Knoxville, returning Sun, Jun 29, priced at $570 found 1 day ago