United Airlines Denver to Philadelphia Flights

Cheapflightsplus.com will find cheap United Airlines flights from Denver to Philadelphia. Compare airline ticket prices and book air tickets starting from $99 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Denver (CO) — Philadelphia (PA) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in june: one-way - $99, two-way – $170.
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Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.
Departure Arrival Flight Details Flight Time Price
10:16 am — 3:55 pm
10:16 am — 3:55 pm UA2437 United Airlines
Denver — Philadelphia
3h 39m
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from$147
10:17 am — 3:56 pm
10:17 am — 3:56 pm UA1575 United Airlines
Denver — Philadelphia
3h 39m
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from$99
10:25 am — 4:04 pm
10:25 am — 4:04 pm UA2679 United Airlines
Denver — Philadelphia
3h 39m
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from$147
10:25 am — 4:04 pm
10:25 am — 4:04 pm UA2637 United Airlines
Denver — Philadelphia
3h 39m
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from$186
11:59 pm — 5:35 am
+1 day
11:59 pm — 5:35 am UA1218 United Airlines
Denver — Philadelphia
3h 36m
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from$100
1:45 pm — 7:20 pm
1:45 pm — 7:20 pm UA1973 United Airlines
Denver — Philadelphia
3h 35m
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from$99
5:31 pm — 11:06 pm
5:31 pm — 11:06 pm UA360 United Airlines
Denver — Philadelphia
3h 35m
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from$99
11:59 pm — 9:33 am
+1 day
11:59 pm — 5:24 am UA1924 United Airlines
Denver — Washington D.C.
2h 59m stop
8:45 am — 9:55 am UA4538 United Airlines
Washington D.C. — Philadelphia
7h 34m
including layover
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from$153
1:30 pm — 10:26 pm
1:30 pm — 4:58 pm UA1116 United Airlines
Denver — Houston
1h 7m stop
6:05 pm — 10:26 pm UA1663 United Airlines
Houston — Philadelphia
6h 56m
including layover
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from$153
2:45 pm — 0:14 am
+1 day
2:44 pm — 6:24 pm UA1023 United Airlines
Denver — Chicago
2h 39m stop
9:23 pm — 0:30 am UA2487 United Airlines
Chicago — Philadelphia
7h 29m
including layover
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from$162
3:54 pm — 11:14 pm
3:54 pm — 9:20 pm UA798 United Airlines
Denver — Washington D.C.
47m stop
10:05 pm — 11:14 pm UA4440 United Airlines
Washington D.C. — Philadelphia
5h 20m
including layover
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from$185
4:10 pm — 0:37 am
+1 day
4:10 pm — 7:50 pm UA213 United Airlines
Denver — Chicago
1h 38m stop
9:28 pm — 0:37 am UA2487 United Airlines
Chicago — Philadelphia
6h 27m
including layover
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from$168
4:17 pm — 0:14 am
+1 day
4:17 pm — 7:57 pm UA1224 United Airlines
Denver — Chicago
1h 8m stop
9:05 pm — 0:14 am UA2487 United Airlines
Chicago — Philadelphia
5h 57m
including layover
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from$163
5:10 am — 4:39 pm
5:10 am — 8:35 am UA320 United Airlines
Denver — Houston
3h 43m stop
12:18 pm — 4:39 pm UA2196 United Airlines
Houston — Philadelphia
9h 29m
including layover
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from$159
6:00 am — 2:16 pm
6:00 am — 9:40 am UA1377 United Airlines
Denver — Chicago
1h 24m stop
11:15 am — 2:24 pm UA2182 United Airlines
Chicago — Philadelphia
6h 16m
including layover
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from$153
6:01 am — 2:08 pm
6:01 am — 11:27 am UA471 United Airlines
Denver — Washington D.C.
1h 28m stop
12:55 pm — 2:08 pm UA4363 United Airlines
Washington D.C. — Philadelphia
6h 7m
including layover
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from$160
7:45 am — 4:39 pm
7:45 am — 11:12 am UA1720 United Airlines
Denver — Houston
1h 6m stop
12:18 pm — 4:39 pm UA2196 United Airlines
Houston — Philadelphia
6h 54m
including layover
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from$159
7:50 am — 0:30 am
+1 day
7:50 am — 11:31 am UA1811 United Airlines
Denver — Chicago
9h 58m stop
9:38 pm — 0:45 am UA2487 United Airlines
Chicago — Philadelphia
14h 40m
including layover
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from$192
8:50 pm — 10:22 am
+1 day
8:50 pm — 0:22 am UA377 United Airlines
Denver — Chicago
6h 45m stop
7:45 am — 10:49 am UA2418 United Airlines
Chicago — Philadelphia
11h 32m
including layover
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from$198
8:55 pm — 0:30 am
+2 days
8:50 pm — 0:25 am UA377 United Airlines
Denver — Chicago
20h 53m stop
9:38 pm — 0:45 am UA2487 United Airlines
Chicago — Philadelphia
25h 35m
including layover
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from$213
9:40 am — 9:31 pm
9:40 am — 1:20 pm UA2329 United Airlines
Denver — Chicago
5h 5m stop
6:20 pm — 9:35 pm UA1776 United Airlines
Chicago — Philadelphia
9h 51m
including layover
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from$183
9:40 am — 0:30 am
+1 day
9:40 am — 1:21 pm UA2329 United Airlines
Denver — Chicago
8h 3m stop
9:38 pm — 0:45 am UA2487 United Airlines
Chicago — Philadelphia
12h 50m
including layover
Find flight
from$241
*Departure and arrival times are local. Last updated on 06/07/2025

Flight Information

There are 7 flights by United Airlines from Denver to Philadelphia every week with departures from Denver International and Arapahoe Co. All flights arrive at Philadelphia Int., Mustin Alf, North Philadelphia, Philadelphia Sea Plane Base.

Departures start from 10:08 am to 9:40 am. Nonstop flight is 3h 35m. The time difference between Denver and Philadelphia is 2h.

  • The fastest flight 3h 35m
  • Average flight time 3h 39m
  • The earliest flight 10:08 am
  • The latest flight 9:40 am
  • Distance 1554 ml

The cheapest months for traveling to Philadelphia are september (from 132 $), august (from 134 $), october (from 138 $).

The most expensive and popular months are february (from 317 $), january (from 306 $), december (from 264 $).

The cheapest flight by United Airlines that our users were able to find is $99. This airfare is economy class on one-way UA1575 flight for September 27, 2025 leaving Denver International in Denver at 10:17 am, it includes all taxes and additional fees.

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Other Popular Airlines on the Route

Besides United Airlines there are other 5 airline carriers between Denver and Philadelphia. Please review schedules and prices from the most popular airlines to find the best airfare deals from Denver to Philadelphia.

Nonstop flights

There are 8 direct flights every day from Denver. Airlines and fares are below:

  • F9 - Frontier Airlines
    from $74
    Find
See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

  • AS - Alaska Airlines
    from $180
    Find
  • F9 - Frontier Airlines
    from $51
    Find
  • SY - Sun Country Airlines
    from $115
    Find
  • HA - Hawaiian Airlines
    from $174
    Find
  • G4 - Allegiant Air
    from $164
    Find
See more connecting flights

How to book an air ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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