$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 23 hours ago
$507
Roundtrip
found 23 hours ago
Select United flight, departing Thu, Jan 1 from Philadelphia to Knoxville, returning Sun, Jan 4, priced at $507 found 23 hours ago
United
Thu, Jan 1 - Sun, Jan 4
PHL
Philadelphia
TYS
Knoxville
$519 Roundtrip, found 23 hours ago
$519
Roundtrip
found 23 hours ago
Select United flight, departing Thu, Jan 1 from Philadelphia to Knoxville, returning Sun, Jan 4, priced at $519 found 23 hours 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
American Airlines
Distance
885 km
Average flight time
2 hours 9 mins

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