PHX to SAT flight delays & on-time performance
Nonstop flights from Phoenix Sky Harbor International Airport to San Antonio International Airport · 843 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PHX or SAT right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Phoenix (PHX) to San Antonio (SAT) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.4% were cancelled, and 7% arrived an hour or more late.
- American Airlines was the most punctual airline here (80% on time); Southwest Airlines was the least (75%).
- Departures scheduled around 7am did best (95% on time); around 8pm did worst (62%).
- Wednesday was the most reliable day to fly (84% on time) and Thursday the least (73%).
- The largest source of delay minutes was late-arriving aircraft (59%).
Which airline is most on time from PHX to SAT?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Frontier Airlines | 91% | 0.0% | 4 min | 0.0% | 65 |
| American Airlines | 80% | 0.7% | 17 min | 8.2% | 998 |
| Envoy AirRegional airline operating American Eagle flights. | 78% | 0.0% | 11 min | 5.8% | 70 |
| Southwest Airlines | 75% | 0.2% | 14 min | 5.8% | 1,389 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am97%32 flights
- 6am97%35 flights
- 7am95%170 flights
- 8am92%208 flights
- 9am87%240 flights
- 10am82%219 flights
- 11am78%80 flights
- 12pm77%297 flights
- 1pm81%171 flights
- 2pm64%121 flights
- 3pm80%123 flights
- 4pm63%180 flights
- 5pm67%74 flights
- 6pm63%135 flights
- 7pm70%260 flights
- 8pm62%110 flights
- 9pm53%67 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday74%0.3% cancelled
- Tuesday82%0.6% cancelled
- Wednesday84%0.0% cancelled
- Thursday73%0.3% cancelled
- Friday74%0.5% cancelled
- Saturday79%0.4% cancelled
- Sunday77%0.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft59%
- Airline (crew, maintenance, cleaning, fueling)34%
- Air traffic control & airport congestion6%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather70%
- Airline (crew, maintenance, cleaning, fueling)20%
- Air traffic control & airport congestion10%
- Security0%
PHX to SAT: common questions
- How often are PHX to SAT flights on time?
- 77% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Phoenix to San Antonio cancelled?
- 0.4% of scheduled flights were cancelled (10 of 2,522).
- How long are typical delays?
- Across all flights the average arrival delay was 15 min (early arrivals count as zero). Flights that were late arrived 59 min behind schedule on average, and 6.6% of flights were an hour or more late.
- How long is taxi time at PHX?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SAT to PHX — 82% on time
More flights from Phoenix
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PHX → SAT, nonstop flights by US airlines that report to the DOT. How we calculate this.