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

Raleigh-Durham International ⇄ Denver International RDU–DEN

Airlines flew 3,465 flights between Raleigh-Durham International RDU in Raleigh/Durham, NC and Denver International DEN in Denver, CO in the twelve months to July 2026, both directions together: 522,249 passengers in 614,099 seats, 85% of them filled, and 276,116 pounds of freight. 1,436 miles, about 206 minutes in the air, on 6 airlines: United Air Lines Inc. (1,485), Southwest Airlines Co. (1,403), Frontier Airlines Inc. (573), Delta Air Lines Inc. (2) and 2 more. Planning to fly it yourself? The weather and winds along this route right now.

3,465
flights, twelve months
RDU-DEN: 1,732 · DEN-RDU: 1,733
522,249
passengers
85% of seats filled
1,436
miles
about 206 minutes airborne
6
airlines
12 aircraft types

Flights by month both directions

0911822733641/254/257/2510/251/264/263167/26
By month, as a table
flights
1/25282
2/25247
3/25295
4/25286
5/25294
6/25357
7/25364
8/25320
9/25266
10/25272
11/25276
12/25293
1/26263
2/26253
3/26298
4/26293
5/26308
6/26307
7/26316

Passengers by month

013,27826,55639,83553,1131/254/257/2510/251/264/2650,3157/26
By month, as a table
passengers
1/2538,948
2/2534,891
3/2541,951
4/2542,420
5/2544,838
6/2552,056
7/2553,113
8/2548,867
9/2541,404
10/2541,990
11/2538,445
12/2543,347
1/2637,099
2/2636,333
3/2645,568
4/2643,163
5/2646,679
6/2649,039
7/2650,315

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Air Lines Inc. UA1,485219,72088%scheduled passenger service
Southwest Airlines Co. WN1,403197,71282%scheduled passenger service
Frontier Airlines Inc. F9573104,58885%scheduled passenger service
Delta Air Lines Inc. DL218078%charter passenger service, scheduled passenger service
SkyWest Airlines Inc. OO100%scheduled passenger service
Air Canada AC14970%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing B737 Max 800974173138,685
Boeing 737-800897171130,474
Boeing 737-900ER41617965,184
Boeing B737 Max 90025017938,105
Airbus Industrie A320-200n21318634,795
Airbus Industrie A321-200n20923641,017
Airbus Industrie A320-100/20015815422,179
Airbus Industrie A321Neoxlr13423025,867
Boeing 737-700/700LR/Max 712714116,052
Airbus Industrie A319851269,836
Canadair RJ-200ER /RJ-4401500
Boeing 757-20017255

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

1,732 flights of 1,742 scheduled, 263,299 passengers in 306,410 seats, 87,736 pounds of freight. United Air Lines Inc. 742; Southwest Airlines Co. 702; Frontier Airlines Inc. 287; SkyWest Airlines Inc. 1.

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

1,733 flights of 1,738 scheduled, 258,950 passengers in 307,689 seats, 188,380 pounds of freight, 237 pounds of mail. United Air Lines Inc. 743; Southwest Airlines Co. 701; Frontier Airlines Inc. 286; Delta Air Lines Inc. 2; Air Canada 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: Raleigh-Durham International RDU and Denver International DEN; all routes.