San Antonio to Denver

What the Data Says About SAT to DEN

The San Antonio to Denver corridor (SAT → DEN) covers roughly 794 miles and is served by 19 carriers, based on Bureau of Transportation Statistics reporting. Across 16,390 flights in the dataset, this route posts a 84.3% on-time rate with an average delay of 72.0 minutes when flights run late. Over the most recent 24 months of BTS data, 6,151 flights were recorded on this pairing — 40 cancelled (0.7%) and 13 diverted (0.2%). Those baseline metrics tell you what to expect before you book.

Having 19 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 16,390 total flights analyzed, the 84.3% on-time figure is statistically meaningful rather than a small-sample fluke. The 72.0-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, Sep 2024 posted the best performance on this corridor at 92% on-time, while Jun 2025 came in at 70% on-time — a 22-point gap between best and worst recent month. For travelers evaluating the SAT to DEN route, the combination of a 84.3% on-time rate, 72.0-minute average delay, 0.7% recent cancellation rate, and 19 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.