The U.S. aircraft register, updated daily
Routes and flights · the DOT's airline reports, August 2025 to July 2026

Philadelphia International ⇄ Denver International PHL–DEN

Airlines flew 5,984 flights between Philadelphia International PHL in Philadelphia, PA and Denver International DEN in Denver, CO in the twelve months to July 2026, both directions together: 912,451 passengers in 1,058,078 seats, 86% of them filled, and 1,027,559 pounds of freight. 1,558 miles, about 219 minutes in the air, on 6 airlines: United Air Lines Inc. (1,891), American Airlines Inc. (1,780), Southwest Airlines Co. (1,735), Frontier Airlines Inc. (574) and 2 more. Planning to fly it yourself? The weather and winds along this route right now.

5,984
flights, twelve months
PHL-DEN: 2,986 · DEN-PHL: 2,998
912,451
passengers
86% of seats filled
1,558
miles
about 219 minutes airborne
6
airlines
12 aircraft types

Flights by month both directions

01663324986641/254/257/2510/251/264/266647/26
By month, as a table
flights
1/25392
2/25357
3/25479
4/25431
5/25510
6/25597
7/25614
8/25610
9/25564
10/25498
11/25476
12/25462
1/26341
2/26332
3/26407
4/26450
5/26552
6/26628
7/26664

Passengers by month

025,85551,71077,565103,4201/254/257/2510/251/264/26103,4207/26
By month, as a table
passengers
1/2555,369
2/2553,522
3/2566,206
4/2564,154
5/2580,024
6/2596,625
7/25100,420
8/2599,467
9/2588,913
10/2578,970
11/2569,927
12/2569,427
1/2649,143
2/2648,061
3/2661,862
4/2665,755
5/2681,419
6/2696,087
7/26103,420

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Air Lines Inc. UA1,891281,95589%scheduled passenger service
American Airlines Inc. AA1,780264,28883%scheduled passenger service
Southwest Airlines Co. WN1,735263,61088%scheduled passenger service
Frontier Airlines Inc. F9574102,22984%scheduled passenger service
Delta Air Lines Inc. DL318586%charter passenger service
Atlas Air Inc. 5Y118497%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-8001,946171295,730
Boeing B737 Max 8001,314173201,156
Airbus Industrie A321Neoxlr780193116,213
Airbus Industrie A321-200n46421682,470
Boeing B737 Max 90046317972,359
Airbus Industrie A320-100/20028115436,405
Boeing 737-900ER25217940,619
Airbus Industrie A320-200n21618635,167
Boeing 737-700/700LR/Max 715913919,818
Airbus Industrie A31910512712,145
Boeing 757-200372185
Boeing 747-4001189184

PHL → DEN this direction alone · flown January 2025 to July 2026

2,986 flights of 3,024 scheduled, 453,409 passengers in 526,989 seats, 382,799 pounds of freight, 265,678 pounds of mail. United Air Lines Inc. 942; American Airlines Inc. 891; Southwest Airlines Co. 863; Frontier Airlines Inc. 288; Delta Air Lines Inc. 2.

DEN → PHL this direction alone · flown January 2025 to July 2026

2,998 flights of 3,020 scheduled, 459,042 passengers in 531,089 seats, 644,760 pounds of freight, 135,400 pounds of mail. United Air Lines Inc. 949; American Airlines Inc. 889; Southwest Airlines Co. 872; Frontier Airlines Inc. 286; Atlas Air Inc. 1; Delta Air Lines Inc. 1.

Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Philadelphia International PHL and Denver International DEN; all routes.