Cleveland to Denver

What the Data Says About CLE to DEN

The Cleveland to Denver corridor (CLE → DEN) covers roughly 1,201 miles and is served by 11 carriers, based on Bureau of Transportation Statistics reporting. Across 10,355 flights in the dataset, this route posts a 84.1% on-time rate with an average delay of 69.0 minutes when flights run late. Over the most recent 24 months of BTS data, 3,698 flights were recorded on this pairing — 17 cancelled (0.5%) and 13 diverted (0.4%). Those baseline metrics tell you what to expect before you book.

Having 11 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 10,355 total flights analyzed, the 84.1% on-time figure is statistically meaningful rather than a small-sample fluke. The 69.0-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 93% on-time, while Jun 2025 came in at 70% on-time — a 23-point gap between best and worst recent month. For travelers evaluating the CLE to DEN route, the combination of a 84.1% on-time rate, 69.0-minute average delay, 0.5% recent cancellation rate, and 11 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.