Flights from Denver to Philadelphia

Our cheapest offers for flights from Denver to Philadelphia

Here you can compare cheap flights from Denver (DEN) to Philadelphia (PHL) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Philadelphia. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Denver
Philadelphia
Outbound
04/03/26
direct
F93340
03h 32min
Return
04/16/26
1 Stopover (BOS)
B60760, B60993
08h 01min
Frontier Airlines ?
$452
Denver
Philadelphia
Outbound
04/03/26
direct
AA2672
03h 30min
Return
04/16/26
direct
AA2023
04h 24min
American Airlines ?
$1,139
Denver
Philadelphia
Outbound
04/03/26
direct
UA0360
03h 43min
Return
04/16/26
1 Stopover (ORD)
UA0660, UA1803
08h 09min
United Airlines ?
$481
Denver
Philadelphia
Outbound
04/03/26
direct
UA0360
03h 43min
Return
04/16/26
1 Stopover (IAH)
UA0584, UA2168
08h 32min
United Airlines ?
$493
Denver
Philadelphia
Outbound
04/03/26
1 Stopover (SEA)
AS0633, AS0371
10h 08min
Return
04/16/26
1 Stopover (SEA)
AS0370, AS0786
11h 21min
Alaska Airlines
$562
Denver
Philadelphia
Outbound
04/03/26
1 Stopover (DFW)
AA2579, AA1961
07h 51min
Return
04/16/26
direct
AA2023
04h 24min
American Airlines ?
$577
Denver
Philadelphia
Outbound
04/03/26
direct
F93340
03h 32min
Return
04/16/26
3 Stopovers (MEX, CUN, MTY)
AM0609, AM0536, VB2164, VB0720
53h 48min
Frontier Airlines ?
$692
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Denver to Philadelphia

Favorite airline: Frontier Airlines
Most travelers looking for flights on the route from Denver to Philadelphia decide to book flights with Frontier Airlines.
Frontier Airlines
65 %
United Airlines
31 %
Delta
4 %
Direct flights are cheaper
Direct flights on this route are $33.00 cheaper on average than flights with a stopover.
non stop flight
1 stop
03h 43min
09h 36min
125 US$
158 US$
The favorite connection is non-stop
Non-stop flights are especially popular on this route. 57 % of travelers will book a direct flight.
Route
bookings
Direct flights
03h 43min, from 125 US$
57 %
1 stopover Orlando International Airport, FL
08h 52min, from 163 US$
21 %
1 stopover Dallas-Fort Worth International Airport, T
09h 36min, from 158 US$
14 %

Important flight information

Flight information: Denver - Philadelphia

Roundtrip from 451,35 US$
Flight duration min. 03:20 / max. 04:50
Return flight duration min. 04:17/ max. 10:55
Distance 2503 km
Flights per week 60
Departure airport Airport Denver International Airport, CO (DEN)
Arrival airport Airport Philadelphia International Airport, PA (PHL)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Philadelphia
Flight destinations with a similar price
Flight destinations with a similar price