$404 Cheap United flights Philadelphia (PHL) to Knoxville (TYS)

View $404 flight on Thu, Jan 1, 2026Opens in a new window

$404 Cheap United flights Philadelphia (PHL) to Knoxville (TYS)

Prices were available within the past 7 days and start at $404 for one-way flights and $507 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Jan 1 - Sun, Jan 4
PHL
Philadelphia
TYS
Knoxville
$507 Roundtrip, found 1 day ago
$507
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jan 1 from Philadelphia to Knoxville, returning Sun, Jan 4, priced at $507 found 1 day ago
United
Thu, Jan 1 - Sun, Jan 4
PHL
Philadelphia
TYS
Knoxville
$519 Roundtrip, found 1 day ago
$519
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jan 1 from Philadelphia to Knoxville, returning Sun, Jan 4, priced at $519 found 1 day ago

Find the cheapest month to fly from Philadelphia (PHL) to Knoxville (TYS)

September is typically the cheapest month to fly

From $226 - $539 per traveler.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
McGhee Tyson
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Popular airline
Delta
Distance
885 km
Average flight time
2 hours 9 mins

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