$140 Cheap Frontier Airlines flights Knoxville (TYS) to Philadelphia (PHL)

$140 Cheap Frontier Airlines flights Knoxville (TYS) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $140 for one-way flights and $195 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Apr 23 - Sat, Apr 25

TYS

Knoxville

PHL

Philadelphia

$195 Roundtrip, found 9 hours ago

$195

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Thu, Apr 23 from Knoxville to Philadelphia, returning Sat, Apr 25, priced at $195 found 9 hours ago

Fri, Apr 10 - Sun, Apr 12

TYS

Knoxville

PHL

Philadelphia

$232 Roundtrip, found 2 days ago

$232

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Apr 10 from Knoxville to Philadelphia, returning Sun, Apr 12, priced at $232 found 2 days ago

Thu, Apr 23 - Wed, Apr 29

TYS

Knoxville

PHL

Philadelphia

$240 Roundtrip, found 9 hours ago

$240

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Thu, Apr 23 from Knoxville to Philadelphia, returning Wed, Apr 29, priced at $240 found 9 hours ago

Mon, Apr 6 - Thu, Apr 9

TYS

Knoxville

PHL

Philadelphia

$246 Roundtrip, found 2 days ago

$246

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Apr 6 from Knoxville to Philadelphia, returning Thu, Apr 9, priced at $246 found 2 days ago

Fri, Apr 10 - Wed, Apr 15

TYS

Knoxville

PHL

Philadelphia

$266 Roundtrip, found 2 days ago

$266

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Apr 10 from Knoxville to Philadelphia, returning Wed, Apr 15, priced at $266 found 2 days ago

Sun, Apr 19 - Sat, Apr 25

TYS

Knoxville

PHL

Philadelphia

$270 Roundtrip, found 9 hours ago

$270

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Sun, Apr 19 from Knoxville to Philadelphia, returning Sat, Apr 25, priced at $270 found 9 hours ago

Mon, Apr 6 - Wed, Apr 15

TYS

Knoxville

PHL

Philadelphia

$280 Roundtrip, found 2 days ago

$280

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Apr 6 from Knoxville to Philadelphia, returning Wed, Apr 15, priced at $280 found 2 days ago

Sun, Apr 19 - Wed, Apr 29

TYS

Knoxville

PHL

Philadelphia

$315 Roundtrip, found 9 hours ago

$315

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Sun, Apr 19 from Knoxville to Philadelphia, returning Wed, Apr 29, priced at $315 found 9 hours ago