Philadelphia (PHL) to San Antonio (SAT): On-Time Performance
Data through July 2026
Philadelphia (PHL) to San Antonio (SAT) is a thinner route than most in this dataset — 266 departures over the past year, roughly 5 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 75% arrived on time.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 2.9%
- Flights/day
- 0.73
- last 12 months
- Duration
- 3h 57m
- scheduled
- Distance
- 1,496 mi
Monthly on-time trend
Best time to fly from PHL to SAT
Aim for departures around 10 a.m. (90% on-time); avoid 6 p.m. departures (62%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 79% | 22 min |
| Tuesdaybest | 81% | 16 min |
| Wednesday | 79% | 15 min |
| Thursday | 71% | 27 min |
| Friday | 73% | 20 min |
| Saturday | 68% | 23 min |
| Sunday | 74% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft42%
- Airline operations43%
- National airspace system12%
- Weather3%
Frequently asked questions
- How often are flights from PHL to SAT delayed?
- 25% of PHL–SAT 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 20 minutes.
- What is the best time of day to fly from PHL to SAT?
- Departures around 10 a.m. have the best record (90% on-time), while departures around 6 p.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PHL to SAT?
- The scheduled PHL–SAT flight time averages 3h 57m over 1,496 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are PHL to SAT flights cancelled?
- 2.9% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from PHL to SAT?
- August 2025 was the roughest month in this dataset, with only 48% of arrivals on time. The best was October 2024 at 100%. If your dates are flexible, that 52-point gap is worth planning around.
Explore related pages
More routes from PHL
Other ways to fly to San Antonio (SAT)
Related guides
Based on 449 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.