$134 Cheap Frontier Airlines flights Phoenix (PHX) to Knoxville (TYS)

$134 Cheap Frontier Airlines flights Phoenix (PHX) to Knoxville (TYS)

Prices were available within the past 7 days and start at $134 for one-way flights and $268 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jun 1 - Thu, Jun 5

PHX

Phoenix

TYS

Knoxville

$268 Roundtrip, found 5 days ago

$268

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Sun, Jun 1 from Phoenix to Knoxville, returning Thu, Jun 5, priced at $268 found 5 days ago

Wed, Jun 4 - Sun, Jun 8

PHX

Phoenix

TYS

Knoxville

$320 Roundtrip, found 5 days ago

$320

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Wed, Jun 4 from Phoenix to Knoxville, returning Sun, Jun 8, priced at $320 found 5 days ago

Sat, May 31 - Thu, Jul 3

PHX

Phoenix

TYS

Knoxville

$321 Roundtrip, found 17 hours ago

$321

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Sat, May 31 from Phoenix to Knoxville, returning Thu, Jul 3, priced at $321 found 17 hours ago

Thu, May 29 - Thu, Jul 3

PHX

Phoenix

TYS

Knoxville

$331 Roundtrip, found 17 hours ago

$331

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Thu, May 29 from Phoenix to Knoxville, returning Thu, Jul 3, priced at $331 found 17 hours ago