San Antonio to Phoenix

What the Data Says About SAT to PHX

The San Antonio to Phoenix corridor (SAT → PHX) covers roughly 843 miles and is served by 12 carriers, based on Bureau of Transportation Statistics reporting. Across 14,061 flights in the dataset, this route posts a 86% on-time rate with an average delay of 82.1 minutes when flights run late. Over the most recent 24 months of BTS data, 5,267 flights were recorded on this pairing — 27 cancelled (0.5%) and 7 diverted (0.1%). Those baseline metrics tell you what to expect before you book.

Having 12 carriers on the route matters: more carriers generally means more daily schedule options, competitive pricing, and redundancy when flights are cancelled. With 14,061 total flights analyzed, the 86% on-time figure is statistically meaningful rather than a small-sample fluke. The 82.1-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, Nov 2024 posted the best performance on this corridor at 93% on-time, while Jun 2025 came in at 71% on-time — a 22-point gap between best and worst recent month. For travelers evaluating the SAT to PHX route, the combination of a 86% on-time rate, 82.1-minute average delay, 0.5% recent cancellation rate, and 12 available carriers is the concrete summary of what BTS data shows about reliability on this pairing.