Cheap Frontier Airlines flights Philadelphia (PHL) to Knoxville (TYS)

Cheap Frontier Airlines flights Philadelphia (PHL) to Knoxville (TYS)

Prices were available within the past 7 days and start at for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jul 5 - Fri, Jul 10

PHL

Philadelphia

TYS

Knoxville

$240 Roundtrip, found 23 hours ago

$240

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Sun, Jul 5 from Philadelphia to Knoxville, returning Fri, Jul 10, priced at $240 found 23 hours ago

Thu, Jul 2 - Mon, Jul 6

PHL

Philadelphia

TYS

Knoxville

$259 Roundtrip, found 23 hours ago

$259

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Thu, Jul 2 from Philadelphia to Knoxville, returning Mon, Jul 6, priced at $259 found 23 hours ago

Thu, Jul 2 - Fri, Jul 10

PHL

Philadelphia

TYS

Knoxville

$260 Roundtrip, found 23 hours ago

$260

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Thu, Jul 2 from Philadelphia to Knoxville, returning Fri, Jul 10, priced at $260 found 23 hours ago

Sun, Jul 5 - Wed, Jul 8

PHL

Philadelphia

TYS

Knoxville

$284 Roundtrip, found 23 hours ago

$284

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Sun, Jul 5 from Philadelphia to Knoxville, returning Wed, Jul 8, priced at $284 found 23 hours ago

Thu, Jul 2 - Wed, Jul 8

PHL

Philadelphia

TYS

Knoxville

$304 Roundtrip, found 23 hours ago

$304

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Thu, Jul 2 from Philadelphia to Knoxville, returning Wed, Jul 8, priced at $304 found 23 hours ago

Tue, Jul 7 - Fri, Jul 10

PHL

Philadelphia

TYS

Knoxville

$325 Roundtrip, found 23 hours ago

$325

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Tue, Jul 7 from Philadelphia to Knoxville, returning Fri, Jul 10, priced at $325 found 23 hours ago