PHL to SAT flight delays & on-time performance
Nonstop flights from Philadelphia International Airport to San Antonio International Airport · 1,496 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PHL or SAT right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Philadelphia (PHL) to San Antonio (SAT) arrived on time 70% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.3% were cancelled, and 13% arrived an hour or more late.
- American Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 10am did best (90% on time); around 6pm did worst (62%).
- Tuesday was the most reliable day to fly (75% on time) and Saturday the least (61%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (45%).
Which airline is most on time from PHL 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 |
|---|---|---|---|---|---|
| American Airlines | 70% | 2.3% | 25 min | 13.1% | 266 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am79%28 flights
- 10am90%30 flights
- 5pm67%116 flights
- 6pm62%87 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday74%0.0% cancelled
- Tuesday75%5.9% cancelled
- Wednesday71%0.0% cancelled
- Thursday67%2.5% cancelled
- Friday71%0.0% cancelled
- Saturday61%2.6% cancelled
- Sunday69%5.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)45%
- Late-arriving aircraft41%
- Air traffic control & airport congestion10%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather83%
- Air traffic control & airport congestion17%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
PHL to SAT: common questions
- How often are PHL to SAT flights on time?
- 70% 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 Philadelphia to San Antonio cancelled?
- 2.3% of scheduled flights were cancelled (6 of 266).
- How long are typical delays?
- Across all flights the average arrival delay was 25 min (early arrivals count as zero). Flights that were late arrived 80 min behind schedule on average, and 13.1% of flights were an hour or more late.
- How long is taxi time at PHL?
- Flights on this route spent 25 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SAT to PHL — 83% on time
More flights from Philadelphia
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PHL → SAT, nonstop flights by US airlines that report to the DOT. How we calculate this.