Denver to Tulsa

What the Data Says About DEN to TUL

The Denver to Tulsa corridor (DEN → TUL) covers roughly 541 miles and is served by 21 carriers, based on Bureau of Transportation Statistics reporting. Across 11,116 flights in the dataset, this route posts a 75.9% on-time rate with an average delay of 61.3 minutes when flights run late. Over the most recent 24 months of BTS data, 4,715 flights were recorded on this pairing — 29 cancelled (0.6%) and 11 diverted (0.2%). Those baseline metrics tell you what to expect before you book.

Having 21 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 11,116 total flights analyzed, the 75.9% on-time figure is statistically meaningful rather than a small-sample fluke. The 61.3-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 88% on-time, while Jul 2025 came in at 59% on-time — a 30-point gap between best and worst recent month. For travelers evaluating the DEN to TUL route, the combination of a 75.9% on-time rate, 61.3-minute average delay, 0.6% recent cancellation rate, and 21 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.