$236 Cheap Frontier Airlines flights Knoxville (TYS) to Philadelphia (PHL)

$236 Cheap Frontier Airlines flights Knoxville (TYS) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $236 for one-way flights and $380 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 21 - Sun, Jan 4

TYS

Knoxville

PHL

Philadelphia

$380 Roundtrip, found 1 day ago

$380

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Dec 21 from Knoxville to Philadelphia, returning Sun, Jan 4, priced at $380 found 1 day ago

Mon, Dec 22 - Sun, Jan 4

TYS

Knoxville

PHL

Philadelphia

$410 Roundtrip, found 1 day ago

$410

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Mon, Dec 22 from Knoxville to Philadelphia, returning Sun, Jan 4, priced at $410 found 1 day ago

Mon, Dec 29 - Sun, Jan 4

TYS

Knoxville

PHL

Philadelphia

$490 Roundtrip, found 2 days ago

$490

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Mon, Dec 29 from Knoxville to Philadelphia, returning Sun, Jan 4, priced at $490 found 2 days ago

Sun, Dec 21 - Mon, Dec 22

TYS

Knoxville

PHL

Philadelphia

$550 Roundtrip, found 1 day ago

$550

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Dec 21 from Knoxville to Philadelphia, returning Mon, Dec 22, priced at $550 found 1 day ago