PHL to SAT flight delays
Philadelphia, PA (PHL) San Antonio, TX (SAT) · 1,496 miles
236 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
70.13%
Arrived on time
Within 15 minutes of schedule
2.12%
Cancelled
Share of scheduled flights
82 min
When late, late by
Average across delayed arrivals
25 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In April it ran 39.2 points more punctual than in August — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The two directions do not behave alike. SAT to PHL arrives on time 10 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
The route has been getting better. The later months in the record run 8.9 points more punctual than the earlier ones, which usually means a schedule that was too tight has been given more room.
Only American Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Which airline should you fly on this route?
Over January 2025 – August 2026, American Airlines arrived on time most often on PHL to SAT. Flights ran closest to schedule in April and worst in November.
Every airline on PHL to SAT
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| American Airlines | 236 | 70.13% | 2.12% | 82 min | D |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
SAT to PHL San Antonio back to Philadelphia 80.09% on time COther routes from Philadelphia
Common questions
Are flights from Philadelphia to San Antonio usually delayed?
70.13% of flights on the PHL to SAT route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from Philadelphia to San Antonio?
Only American Airlines appears in the published record on this route, with 236 flights and 70.13% arriving on time.
How often are PHL to SAT flights cancelled?
2.12% of scheduled flights did not operate — about 21 in every thousand. That is in the normal range.
What is the best month to fly Philadelphia to San Antonio?
April, when 87.5% of flights arrived on time. The worst was August at 48.3%.
When PHL to SAT flights are late, how late are they?
About 82 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on PHL to SAT during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →