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

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

Prices were available within the past 7 days and start at for one-way flights and $170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 21 - Mon, Aug 25

TYS

Knoxville

PHL

Philadelphia

$170 Roundtrip, found 1 day ago

$170

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Aug 21 from Knoxville to Philadelphia, returning Mon, Aug 25, priced at $170 found 1 day ago

Sun, Aug 17 - Thu, Aug 21

TYS

Knoxville

PHL

Philadelphia

$200 Roundtrip, found 1 day ago

$200

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Aug 17 from Knoxville to Philadelphia, returning Thu, Aug 21, priced at $200 found 1 day ago