How reliable is San Angelo Regional Mathis Field?
Flights from SJT departed within 15 minutes of schedule in 84% of 8,457 flights in official BTS history — and weather is calmest in Aug. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the departure punctuality at SJT looks like
On-time departures
across 8,457 flights
Source: BTS Airport Operations · data through 2026-06-25. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
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Weather by month
When the weather works for you at San Angelo
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 98/100 favorability
Roughest month
Most disruptive — low visibility & fog, snow · 90/100 favorability
The read on SJT
What the numbers say about flying through San Angelo Regional Mathis Field
Across official performance history, flights from San Angelo left within 15 minutes of schedule about 84% of the time over 8,457 flights. That's a solid, better-than-average operational record. Pair it with an elevated cancellation rate of 3.5% — worth weighing alongside the on-time figure. When a departure does run late, the typical delay is around 11 minutes.
On weather, San Angelo is an unusually calm-weather airport year-round. August is the calmest stretch for flying, scoring 98 out of 100 for favorable conditions, while January is the most disruptive at 90, driven mainly by low visibility & fog and snow. The year is relatively steady, so no single month stands out as one to avoid on weather alone.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to San Angelo, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about SJT
- How reliable is San Angelo Regional Mathis Field (SJT)?
- Flights from San Angelo left within 15 minutes of schedule roughly 84% of the time across 8,457 flights of official history — a solid, better-than-average operational record. The cancellation rate runs about 3.5%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from SJT for good weather?
- August has the calmest flying weather at San Angelo Regional Mathis Field. January is the most disruptive, mainly from low visibility & fog and snow.
Planning a trip through San Angelo?
Score real flights to and from SJT on reliability, weather, and connection safety — not just price.