Birmingham to Denver

What the Data Says About BHM to DEN

The Birmingham to Denver corridor (BHM → DEN) covers roughly 1,083 miles and is served by 6 carriers, based on Bureau of Transportation Statistics reporting. Across 5,958 flights in the dataset, this route posts a 81.3% on-time rate with an average delay of 69.8 minutes when flights run late. Over the most recent 24 months of BTS data, 2,173 flights were recorded on this pairing — 9 cancelled (0.4%) and 11 diverted (0.5%). Those baseline metrics tell you what to expect before you book.

Having 6 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 5,958 total flights analyzed, the 81.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 69.8-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 95% on-time, while Jun 2025 came in at 70% on-time — a 25-point gap between best and worst recent month. For travelers evaluating the BHM to DEN route, the combination of a 81.3% on-time rate, 69.8-minute average delay, 0.4% recent cancellation rate, and 6 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.