San Antonio to Dallas

What the Data Says About SAT to DAL

The San Antonio to Dallas corridor (SAT → DAL) covers roughly 247 miles and is served by 1 carrier, based on Bureau of Transportation Statistics reporting. Across 15,364 flights in the dataset, this route posts a 83.8% on-time rate with an average delay of 60.4 minutes when flights run late. Over the most recent 24 months of BTS data, 5,498 flights were recorded on this pairing — 80 cancelled (1.5%) and 5 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 1 carrier on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 15,364 total flights analyzed, the 83.8% on-time figure is statistically meaningful rather than a small-sample fluke. The 60.4-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, Feb 2025 posted the best performance on this corridor at 92% on-time, while May 2024 came in at 71% on-time — a 21-point gap between best and worst recent month. For travelers evaluating the SAT to DAL route, the combination of a 83.8% on-time rate, 60.4-minute average delay, 1.5% recent cancellation rate, and 1 available carrier is the concrete summary of what BTS data shows about reliability on this pairing.