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

John Glenn Columbus International ⇄ Denver International CMH–DEN

Airlines flew 3,514 flights between John Glenn Columbus International CMH in Columbus, OH and Denver International DEN in Denver, CO in the twelve months to July 2026, both directions together: 479,868 passengers in 595,742 seats, 81% of them filled, and 546,793 pounds of freight. 1,154 miles, about 166 minutes in the air, on 5 airlines: Southwest Airlines Co. (1,827), United Air Lines Inc. (1,441), Frontier Airlines Inc. (244), American Airlines Inc. (1) and 1 more. Planning to fly it yourself? The weather and winds along this route right now.

3,514
flights, twelve months
CMH-DEN: 1,759 · DEN-CMH: 1,755
479,868
passengers
81% of seats filled
1,154
miles
about 166 minutes airborne
5
airlines
10 aircraft types

Flights by month both directions

0831662483311/254/257/2510/251/264/263307/26
By month, as a table
flights
1/25259
2/25240
3/25274
4/25280
5/25295
6/25308
7/25319
8/25294
9/25293
10/25331
11/25282
12/25282
1/26249
2/26249
3/26290
4/26298
5/26304
6/26312
7/26330

Passengers by month

011,84023,67935,51847,3581/254/257/2510/251/264/2647,3587/26
By month, as a table
passengers
1/2529,520
2/2528,608
3/2532,800
4/2532,410
5/2539,080
6/2544,306
7/2546,950
8/2542,996
9/2543,095
10/2546,063
11/2534,378
12/2536,364
1/2630,477
2/2630,873
3/2639,006
4/2639,220
5/2642,741
6/2647,297
7/2647,358

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
Southwest Airlines Co. WN1,827245,14979%scheduled passenger service
United Air Lines Inc. UA1,441195,59983%scheduled passenger service
Frontier Airlines Inc. F924439,03377%scheduled passenger service
American Airlines Inc. AA13923%scheduled passenger service
Air Canada AC14869%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-8001,493170201,887
Boeing B737 Max 800929174128,294
Boeing 737-700/700LR/Max 731114037,185
Boeing 737-900ER25617939,793
Airbus Industrie A320-100/20015315219,409
Airbus Industrie A320-200n12818619,147
Airbus Industrie A31911112612,150
Airbus Industrie A321-200n7623713,374
Airbus Industrie A321Neoxlr302305,039
Boeing B737 Max 900271793,590

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

1,759 flights of 1,770 scheduled, 240,154 passengers in 298,338 seats, 345,494 pounds of freight, 700 pounds of mail. Southwest Airlines Co. 917; United Air Lines Inc. 718; Frontier Airlines Inc. 122; American Airlines Inc. 1; Air Canada 1.

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

1,755 flights of 1,769 scheduled, 239,714 passengers in 297,404 seats, 201,299 pounds of freight, 77,987 pounds of mail. Southwest Airlines Co. 910; United Air Lines Inc. 723; Frontier Airlines Inc. 122.

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: John Glenn Columbus International CMH and Denver International DEN; all routes.