Denver to Columbus

What the Data Says About DEN to CMH

The Denver to Columbus corridor (DEN → CMH) covers roughly 1,154 miles and is served by 20 carriers, based on Bureau of Transportation Statistics reporting. Across 9,415 flights in the dataset, this route posts a 74.5% on-time rate with an average delay of 60.1 minutes when flights run late. Over the most recent 24 months of BTS data, 3,561 flights were recorded on this pairing — 15 cancelled (0.4%) and 4 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 20 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 9,415 total flights analyzed, the 74.5% on-time figure is statistically meaningful rather than a small-sample fluke. The 60.1-minute average delay applies only to flights that actually ran late, so it is not the average wait across all departures — the majority of flights on this route depart on time under the BTS definition of a delay (15+ minutes past schedule).

Looking at recent months, Oct 2024 posted the best performance on this corridor at 86% on-time, while Jun 2025 came in at 55% on-time — a 30-point gap between best and worst recent month. For travelers evaluating the DEN to CMH route, the combination of a 74.5% on-time rate, 60.1-minute average delay, 0.4% recent cancellation rate, and 20 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.