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

Denver International ⇄ Calgary DEN–YYC

Airlines flew 1,824 flights between Denver International DEN in Denver, CO and Calgary, Canada YYC in Calgary, CA in the twelve months to July 2026, both directions together: 265,728 passengers in 300,985 seats, 88% of them filled. 899 miles, about 105 minutes in the air, on 4 airlines: United Air Lines Inc. (1,532), Westjet (289), Air Canada (2), Delta Air Lines Inc. (1).

1,824
flights, twelve months
DEN-YYC: 917 · YYC-DEN: 907
265,728
passengers
88% of seats filled
899
miles
about 105 minutes airborne
4
airlines
7 aircraft types

Flights by month both directions

0641281912551/254/257/2510/251/264/262277/26
By month, as a table
flights
1/25126
2/25111
3/25168
4/25124
5/25214
6/25255
7/25226
8/25213
9/25159
10/25136
11/25118
12/25124
1/26124
2/26111
3/26125
4/26126
5/26172
6/26189
7/26227

Passengers by month

08,28616,57224,85933,1451/254/257/2510/251/264/2631,2947/26
By month, as a table
passengers
1/2518,381
2/2517,373
3/2524,468
4/2518,312
5/2524,953
6/2532,484
7/2533,145
8/2531,340
9/2522,967
10/2520,666
11/2517,386
12/2518,683
1/2620,254
2/2618,489
3/2619,830
4/2619,256
5/2621,393
6/2624,170
7/2631,294

The airlines twelve months, both directions

AirlineFlightsPassengersSeats filledService
United Air Lines Inc. UA1,532232,70890%scheduled passenger service
Westjet WS28932,91278%scheduled passenger service
Air Canada AC210877%charter passenger service
Delta Air Lines Inc. DL100%charter passenger service

The aircraft as the airlines report their types

AircraftFlightsSeats a flightPassengers
Boeing 737-800985167143,823
Boeing B737 Max 80024916737,795
Boeing 737-700/700LR/Max 719113219,884
Boeing 737-900ER18417929,996
Boeing B737 Max 90017417928,642
Airbus Industrie A320-100/200401465,588
Boeing 757-20011930

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

917 flights of 768 scheduled, 136,414 passengers in 151,852 seats, 15 pounds of mail. United Air Lines Inc. 772; Westjet 144; Delta Air Lines Inc. 1.

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

907 flights of 768 scheduled, 129,314 passengers in 149,133 seats. United Air Lines Inc. 760; Westjet 145; Air Canada 2.

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: Denver International DEN and Calgary, Canada YYC; all routes.