$139 Cheap United flights Denver (DEN) to Philadelphia (PHL)

View $139 flight on Wed, Feb 18, 2026Opens in a new window

$139 Cheap United flights Denver (DEN) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $139 for one-way flights and $217 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Feb 18 - Wed, Feb 25
DEN
Denver
PHL
Philadelphia
$217 Roundtrip, found 17 hours ago
$217
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Feb 18 from Denver to Philadelphia, returning Wed, Feb 25, priced at $217 found 17 hours ago
United
Wed, Feb 18 - Wed, Feb 25
DEN
Denver
PHL
Philadelphia
$249 Roundtrip, found 17 hours ago
$249
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Feb 18 from Denver to Philadelphia, returning Wed, Feb 25, priced at $249 found 17 hours ago
United
Wed, Feb 18 - Wed, Feb 25
DEN
Denver
PHL
Philadelphia
$272 Roundtrip, found 17 hours ago
$272
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Feb 18 from Denver to Philadelphia, returning Wed, Feb 25, priced at $272 found 17 hours ago

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

March is typically the cheapest month to fly

From $93 - $393 per traveler.

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Philadelphia Intl. PHL. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $289
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $289

Travel information

Origin airport
Denver Intl.
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
2485 km
Average flight time
5 hours 27 mins

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