San Antonio to Houston

What the Data Says About SAT to HOU

The San Antonio to Houston corridor (SAT → HOU) covers roughly 192 miles and is served by 1 carrier, based on Bureau of Transportation Statistics reporting. Across 9,124 flights in the dataset, this route posts a 83.9% on-time rate with an average delay of 55.4 minutes when flights run late. Over the most recent 24 months of BTS data, 3,200 flights were recorded on this pairing — 27 cancelled (0.8%) and 7 diverted (0.2%). 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 9,124 total flights analyzed, the 83.9% on-time figure is statistically meaningful rather than a small-sample fluke. The 55.4-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, Jan 2025 posted the best performance on this corridor at 93% on-time, while Jul 2024 came in at 59% on-time — a 34-point gap between best and worst recent month. For travelers evaluating the SAT to HOU route, the combination of a 83.9% on-time rate, 55.4-minute average delay, 0.8% recent cancellation rate, and 1 available carrier is the concrete summary of what BTS data shows about reliability on this pairing.