$165 Cheap United flights Philadelphia (PHL) to Denver (DEN)

View $165 flight on Sat, Jan 31, 2026Opens in a new window

$165 Cheap United flights Philadelphia (PHL) to Denver (DEN)

Prices were available within the past 7 days and start at $165 for one-way flights and $244 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Jan 31 - Tue, Feb 10
PHL
Philadelphia
DEN
Denver
$244 Roundtrip, found 6 days ago
$244
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jan 31 from Philadelphia to Denver, returning Tue, Feb 10, priced at $244 found 6 days ago
United
Sat, Jan 31 - Tue, Feb 10
PHL
Philadelphia
DEN
Denver
$249 Roundtrip, found 6 days ago
$249
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jan 31 from Philadelphia to Denver, returning Tue, Feb 10, priced at $249 found 6 days ago

Find the cheapest month to fly from Philadelphia (PHL) to Denver (DEN)

March is typically the cheapest month to fly

From $93 - $367 per traveler.
Flights from Philadelphia (PHL) to Denver (DEN)
Origin airport
Philadelphia Intl.
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Popular airline
Frontier Airlines
Distance
2485 km
Average flight time
2 hours 18 mins