Houston to San Antonio

What the Data Says About HOU to SAT

The Houston to San Antonio corridor (HOU → SAT) covers roughly 192 miles and is served by 1 carrier, based on Bureau of Transportation Statistics reporting. Across 9,296 flights in the dataset, this route posts a 80.1% on-time rate with an average delay of 57.0 minutes when flights run late. Over the most recent 24 months of BTS data, 3,190 flights were recorded on this pairing — 20 cancelled (0.6%) and 2 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 9,296 total flights analyzed, the 80.1% on-time figure is statistically meaningful rather than a small-sample fluke. The 57.0-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 93% on-time, while Jul 2024 came in at 57% on-time — a 36-point gap between best and worst recent month. For travelers evaluating the HOU to SAT route, the combination of a 80.1% on-time rate, 57.0-minute average delay, 0.6% recent cancellation rate, and 1 available carrier is the concrete summary of what BTS data shows about reliability on this pairing.