Dallas/Fort Worth to San Antonio

What the Data Says About DFW to SAT

The Dallas/Fort Worth to San Antonio corridor (DFW → SAT) covers roughly 247 miles and is served by 14 carriers, based on Bureau of Transportation Statistics reporting. Across 21,998 flights in the dataset, this route posts a 73.2% on-time rate with an average delay of 76.7 minutes when flights run late. Over the most recent 24 months of BTS data, 9,051 flights were recorded on this pairing — 268 cancelled (3.0%) and 7 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 14 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 21,998 total flights analyzed, the 73.2% on-time figure is statistically meaningful rather than a small-sample fluke. The 76.7-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 82% on-time, while Jul 2024 came in at 51% on-time — a 32-point gap between best and worst recent month. For travelers evaluating the DFW to SAT route, the combination of a 73.2% on-time rate, 76.7-minute average delay, 3.0% recent cancellation rate, and 14 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.