Cheap Frontier Airlines flights Denver (DEN) to Knoxville (TYS)

Cheap Frontier Airlines flights Denver (DEN) to Knoxville (TYS)

Prices were available within the past 7 days and start at for one-way flights and $338 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Dec 15 - Thu, Dec 25

DEN

Denver

TYS

Knoxville

$338 Roundtrip, found 13 hours ago

$338

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Mon, Dec 15 from Denver to Knoxville, returning Thu, Dec 25, priced at $338 found 13 hours ago

Sun, Dec 14 - Thu, Dec 25

DEN

Denver

TYS

Knoxville

$348 Roundtrip, found 13 hours ago

$348

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Sun, Dec 14 from Denver to Knoxville, returning Thu, Dec 25, priced at $348 found 13 hours ago

Mon, Dec 15 - Sun, Dec 28

DEN

Denver

TYS

Knoxville

$386 Roundtrip, found 13 hours ago

$386

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Mon, Dec 15 from Denver to Knoxville, returning Sun, Dec 28, priced at $386 found 13 hours ago

Sun, Dec 14 - Sun, Dec 28

DEN

Denver

TYS

Knoxville

$396 Roundtrip, found 13 hours ago

$396

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Sun, Dec 14 from Denver to Knoxville, returning Sun, Dec 28, priced at $396 found 13 hours ago

Mon, Dec 15 - Sun, Dec 28

DEN

Denver

TYS

Knoxville

$456 Roundtrip, found 13 hours ago

$456

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Mon, Dec 15 from Denver to Knoxville, returning Sun, Dec 28, priced at $456 found 13 hours ago

Sun, Dec 14 - Sun, Dec 28

DEN

Denver

TYS

Knoxville

$466 Roundtrip, found 13 hours ago

$466

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Sun, Dec 14 from Denver to Knoxville, returning Sun, Dec 28, priced at $466 found 13 hours ago