San Antonio (SAT) to Phoenix (PHX): On-Time Performance
Data through July 2026
When you fly SAT to PHX matters as much as anything else about the booking: the route swung from 93% on-time in November 2024 to just 57% in June 2026. Across the full period the route averages 83% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 72%), which matters most in the rough months.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 6.9
- last 12 months
- Duration
- 2h 30m
- scheduled
- Distance
- 843 mi
Best airline from SAT to PHX
5 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 87% | 8 min | 0.0% | 126 |
| Southwest Airlines | 84% | 9 min | 0.4% | 2,990 |
| Frontier Airlines | 83% | 11 min | 0.0% | 65 |
| American Airlines | 81% | 21 min | 0.9% | 2,109 |
| Envoy Air | 79% | 9 min | 0.0% | 76 |
Monthly on-time trend
Best time to fly from SAT to PHX
Aim for departures around 6 a.m. (96% on-time); avoid 8 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 15 min |
| Tuesdaybest | 86% | 11 min |
| Wednesday | 85% | 14 min |
| Thursday | 80% | 14 min |
| Friday | 84% | 14 min |
| Saturday | 85% | 13 min |
| Sunday | 81% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft59%
- Airline operations29%
- National airspace system7%
- Weather5%
Frequently asked questions
- How often are flights from SAT to PHX delayed?
- 17% of SAT–PHX flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 14 minutes.
- Which airline is most reliable from SAT to PHX?
- SkyWest Airlines has the best on-time record on this route at 87%, based on 126 flights. 5 airlines flew SAT–PHX frequently enough to compare in this period.
- What is the best time of day to fly from SAT to PHX?
- Departures around 6 a.m. have the best record (96% on-time), while departures around 8 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SAT to PHX?
- The scheduled SAT–PHX flight time averages 2h 30m over 843 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are SAT to PHX flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SAT to PHX?
- June 2026 was the roughest month in this dataset, with only 57% of arrivals on time. The best was November 2024 at 93%. If your dates are flexible, that 35-point gap is worth planning around.
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Based on 5,366 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.