John Glenn Columbus International Airport (CMH) August 2025 Operational Report

Flight Activity Overview

Total Departing Flights: 4,516

Year-over-Year Change in Departing Flights: +8.98%

In August 2025, John Glenn Columbus International Airport handled 4,516 departing flights, a +8.98% year-over-year change as carriers adjusted capacity to late-summer demand. The increase supports stronger connectivity for the Columbus region, with schedules concentrating around peak business and leisure travel periods.

On-Time Performance and Cancellations

Departure On-Time Performance: 81.20%

Change in On-Time Performance: -1.28 percentage points

Cancelled Flights: 11

Year-over-Year Change in Cancellations: -91.54%

Departure on-time performance was 81.20%, a change of -1.28 percentage points from a year earlier, with weather bursts and flow management occasionally affecting afternoon waves. Cancelled departures totaled 11 (-91.54% YoY), limiting severe disruption; travelers still benefited from modest buffers during weekend peaks.

Airlines Serving CMH

Service at John Glenn Columbus International Airport is provided by a mix of major U.S. airlines and low‑cost carriers connecting to national hubs and key leisure markets. The network emphasizes domestic reach with broad coverage across the Midwest and East Coast.

Outlook

Over the next 4–8 weeks, schedules at John Glenn Columbus International Airport should remain broadly steady with on‑time performance near current levels, though late‑day thunderstorms and Friday–Sunday peaks may trigger localized delays. Passengers should favor morning departures, allow 60–90 minutes of buffer for security and connections on busy days, and monitor real‑time gate and weather updates via the NextFly App.