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
Denver
Philadelphia
Outbound
11/27/25
direct
AA2672
03h 29min
Return
11/30/25
1 Stopover (MSP)
SY1776, SY0651
28h 24min
American Airlines ?
$421
Best option
Denver
Philadelphia
Outbound
11/27/25
direct
AA2672
03h 29min
Return
11/30/25
direct
AA3134
04h 18min
American Airlines ?
$577
Denver
Philadelphia
Outbound
11/27/25
1 Stopover (SEA)
AS0643, AS0442
09h 35min
Return
11/30/25
direct
F93339
04h 25min
Alaska Airlines
$523
Denver
Philadelphia
Outbound
11/27/25
1 Stopover (SEA)
AS0643, AS0442
09h 35min
Return
11/30/25
direct
F93339
04h 25min
Alaska Airlines ?
$532
Denver
Philadelphia
Outbound
11/27/25
1 Stopover (SEA)
AS0643, AS0442
09h 35min
Return
11/30/25
direct
F93339
04h 25min
Alaska Airlines
$559
Denver
Philadelphia
Outbound
11/27/25
direct
AA2672
03h 29min
Return
11/30/25
direct
AA3134
04h 18min
American Airlines ?
$585
Denver
Philadelphia
Outbound
11/27/25
direct
AA2672
03h 29min
Return
11/30/25
direct
AA3134
04h 18min
American Airlines ?
$721
Denver
Philadelphia
Outbound
11/27/25
direct
UA1575
03h 32min
Return
11/30/25
1 Stopover (IAH)
UA2197, UA1654
08h 59min
United Airlines ?
$941
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
$ 158
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
57 %
1 stopover Orlando International Airport, FL
08h 52min, from $ 163
21 %
1 stopover Dallas-Fort Worth International Airport, T
09h 36min, from $ 158
14 %

Important flight information

Flight information: Denver - Philadelphia

Roundtrip from $ 420,98
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