Best Time to Fly SAT to PHL: On-Time Stats by Hour & Airline
San Antonio International → Philadelphia International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 82.7% of San Antonio (SAT) to Philadelphia (PHL) flights arrived on time (266 scheduled flights). That is 5.1 points above the national average of 77.6%.
American Airlines was the only reporting airline with regular flights on this route.
October has been the best month (87% on time) and Friday the weakest day of the week (69%).
2.3% of flights were cancelled, versus 1.8% nationally.
SAT to PHL on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| American Airlines | 82.7% | 112 min | 2.3% | 266 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAT to PHL
On-time arrival % by scheduled departure hour (local time), 420 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 87.1% | 1.2% | 172 |
| 8am–9am | Limited data | 29 | |
| 12pm–1pm | 60.4% | 4.2% | 95 |
| 1pm–2pm | 73.3% | 1.1% | 91 |
| 2pm–3pm | 68.8% | 3.0% | 33 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SAT to PHL
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Summer peak (Jun 15 - Aug 15) | 73.0% | -7.1 pts | 3.6% | 165 |
| All other days | 80.1% | — | 1.6% | 255 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).