Denver International Airport (DEN) July 2025 Operational Report

Flight Activity Overview

Total Departing Flights: 30,683

Year-over-Year Change in Departing Flights: 2.08%

In July 2025, Denver International Airport handled 30,683 departures, a year-over-year change of 2.08% as carriers adjusted capacity for peak summer demand. The hub’s role connecting the Mountain West and Great Plains remained strong, with steady domestic flows supporting tourism and VFR traffic.

On-Time Performance and Cancellations

Departure On-Time Performance: 57.10%

Year-over-Year Change in OTP: −15.86%

Cancelled Flights: 279

Year-over-Year Change in Cancellations: −43.41%

OTP at DEN ended the month at 57.10%; frequent afternoon thunderstorms and air traffic flow programs contributed to delays. Cancellations totaled 279, a −43.41% change year over year, meaning fewer severe disruptions for most travelers compared with last summer.

Airlines Serving DEN

Major operators include United Airlines (UA), Southwest (WN), and Frontier (F9). As a United hub with 30,683 departures in July 2025 and OTP at 57.10%, the network offers dense domestic coverage and seasonal links to Canada and Mexico.

Outlook

Over the next 4–8 weeks, the hub expects broadly stable schedules with departure OTP near current levels; afternoon convection and weekend peaks may still trigger episodic delays. Passengers should favor morning departures, allow 60–90 minutes of buffer for security and connections on peak days, and monitor real‑time gate and weather alerts.