Philadelphia to Denver flights: who flies PHL-DEN

Philadelphia to Denver flight schedule

Scheduled nonstop departures for PHL to DEN starting October 12, 2026, last checked against our schedule feed on October 11, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Philadelphia (PHL) to Denver (DEN)
Date	Flight	Airline	Departs PHL	Arrives DEN	Duration	Aircraft
Mon, Oct 12	F9 3339	Frontier Airlines	05:50	08:00	4h 10m	Airbus A320neo
Mon, Oct 12	UA 1423	United Airlines	08:00	10:02	4h 2m	Boeing 737-800
Mon, Oct 12	AA 2282	American Airlines	08:57	11:22	4h 25m	Airbus A320
Mon, Oct 12	UA 1537	United Airlines	10:05	12:10	4h 5m	Boeing 737-800
Mon, Oct 12	UA 2644	United Airlines	15:55	18:07	4h 12m	Airbus A321neo family
Mon, Oct 12	AA 3158	American Airlines	18:15	20:46	4h 31m	Airbus A321
Mon, Oct 12	AA 2878	American Airlines	20:05	22:36	4h 31m	Boeing 737-800
Tue, Oct 13	F9 3339	Frontier Airlines	05:50	08:00	4h 10m	Airbus A320neo
Tue, Oct 13	UA 1423	United Airlines	08:00	10:02	4h 2m	Boeing 737-800
Tue, Oct 13	AA 2282	American Airlines	08:57	11:22	4h 25m	Airbus A320
Tue, Oct 13	UA 1537	United Airlines	10:05	12:10	4h 5m	Boeing 737-800
Tue, Oct 13	AA 946	American Airlines	11:24	13:59	4h 35m	Boeing 737-800
Tue, Oct 13	UA 2644	United Airlines	15:52	17:59	4h 7m	Boeing 737 MAX 9
Tue, Oct 13	AA 3158	American Airlines	18:15	20:40	4h 25m	Airbus A321neo family
Tue, Oct 13	AA 2878	American Airlines	19:55	22:26	4h 31m	Boeing 737-800
Wed, Oct 14	F9 3339	Frontier Airlines	05:50	08:00	4h 10m	Airbus A320neo
Wed, Oct 14	UA 1423	United Airlines	08:00	10:02	4h 2m	Boeing 737-800
Wed, Oct 14	AA 2282	American Airlines	08:57	11:22	4h 25m	Airbus A320
Wed, Oct 14	UA 1537	United Airlines	10:05	12:10	4h 5m	Boeing 737-800
Wed, Oct 14	AA 946	American Airlines	11:24	13:59	4h 35m	Boeing 737-800
Wed, Oct 14	UA 2644	United Airlines	15:52	17:59	4h 7m	Boeing 737 MAX 9
Wed, Oct 14	AA 3158	American Airlines	18:23	20:46	4h 23m	Airbus A321
Wed, Oct 14	AA 2878	American Airlines	19:55	22:26	4h 31m	Boeing 737-800
Thu, Oct 15	F9 3339	Frontier Airlines	05:50	08:00	4h 10m	Airbus A320neo
Thu, Oct 15	UA 1423	United Airlines	08:00	10:02	4h 2m	Boeing 737-800
Thu, Oct 15	AA 2282	American Airlines	08:20	10:45	4h 25m	Airbus A320
Thu, Oct 15	AA 1048	American Airlines	10:00	12:35	4h 35m	Boeing 737-800
Thu, Oct 15	UA 1537	United Airlines	10:05	12:10	4h 5m	Boeing 737-800
Thu, Oct 15	UA 2644	United Airlines	15:52	17:59	4h 7m	Boeing 737 MAX 9
Thu, Oct 15	AA 3158	American Airlines	18:15	20:46	4h 31m	Airbus A321
Thu, Oct 15	AA 2878	American Airlines	20:05	22:36	4h 31m	Boeing 737-800
Fri, Oct 16	F9 3339	Frontier Airlines	05:50	08:00	4h 10m	Airbus A320neo
Fri, Oct 16	UA 1423	United Airlines	08:00	10:02	4h 2m	Boeing 737-800
Fri, Oct 16	AA 2282	American Airlines	08:57	11:22	4h 25m	Airbus A320
Fri, Oct 16	UA 1537	United Airlines	10:05	12:10	4h 5m	Boeing 737-800
Fri, Oct 16	AA 946	American Airlines	11:24	13:59	4h 35m	Boeing 737-800
Fri, Oct 16	UA 2644	United Airlines	15:55	18:07	4h 12m	Airbus A321neo family
Fri, Oct 16	AA 3158	American Airlines	18:15	20:46	4h 31m	Airbus A321
Fri, Oct 16	AA 2878	American Airlines	20:05	22:36	4h 31m	Boeing 737-800
Sat, Oct 17	F9 3339	Frontier Airlines	05:50	08:00	4h 10m	Airbus A320neo

Showing the first 40 of 55 scheduled PHL to DEN departures across 7 days with service, starting October 12, 2026. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every PHL to DEN date on the interactive map

Aircraft on the Philadelphia to Denver nonstop

In the schedule table on this page, American Airlines flies the Boeing 737-800, the Airbus A320, the Airbus A321, and the Airbus A321neo family. United Airlines flies the Boeing 737-800, the Boeing 737 MAX 9, and the Airbus A321neo family. Frontier Airlines flies the Airbus A320neo. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on PHL to DEN departures

2LNR tracks confirmed upgrade and award space on American Airlines, segment by segment and date by date. Open the calendar for Philadelphia to Denver to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade or award seats by date on the PHL to DEN departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See PHL to DEN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Philadelphia to Denver nonstop

Carriers operating PHL to DEN nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See PHL to DEN on the interactive map →

Frequently asked questions about PHL to DEN

How long is the flight from Philadelphia (PHL) to Denver (DEN)?

Scheduled flight times from Philadelphia (PHL) to Denver (DEN) run from 4h 2m to 4h 35m across the departures in the schedule table on this page. The nonstop covers about 1,555 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from PHL to DEN?

United Airlines, American Airlines, and Frontier Airlines fly PHL to DEN nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines.

How many flights a week are there from PHL to DEN?

About 51 nonstop flights a week run between Philadelphia (PHL) and Denver (DEN) in the current schedule, operated by United Airlines, American Airlines, and Frontier Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.

What time do flights from PHL to DEN depart?

Scheduled PHL to DEN nonstops in the next 7 days with service leave between 05:50 and 20:05, local time at Philadelphia. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate PHL to DEN nonstop?

The schedule table on this page lists 9 flight numbers for PHL to DEN nonstops, including AA 946, AA 2282, AA 2878, and AA 3158 on American Airlines; UA 1423, UA 1537, and UA 2644 on United Airlines; and F9 3339 on Frontier Airlines. The table lists each departure by date with its times and aircraft.

How do I check upgrade or award availability on PHL to DEN?

Open the PHL to DEN route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Flying the other way? See DEN to PHL upgrade and award space.

Award seats rather than schedules? See American Airlines award availability.

Looking beyond this route? See every route from Philadelphia (PHL), or every route from Denver (DEN).

Nonstops to Denver (DEN) from other airports within 150 miles of Philadelphia (PHL):

Allentown (ABE) to Denver (DEN), 55 miles from PHL
Newark (EWR) to Denver (DEN), 79 miles from PHL
Baltimore (BWI) to Denver (DEN), 90 miles from PHL
New York (JFK) to Denver (DEN), 93 miles from PHL
New York (LGA) to Denver (DEN), 95 miles from PHL

Distances are great-circle between the airports, not driving distance.

Philadelphia to Denver (PHL-DEN): nonstop upgrade & award space