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WanderNerd

Route Reliability

San Antonio → Philadelphia

SATPHL · 1,496 miles · San Antonio International Airport to Philadelphia International Airport

79
Usually Fine
WanderNerd Reliability Score
79%
Arrive within 15 minutes
11 min
Average arrival delay
1.9%
Cancelled
211
Flights in the data

Data through May 2026.

American Airlines is the only airline in this data on this route, arriving on time 79% of the time across 211 flights. No comparison to make.

What the data says

Morning-you made the right choice.

SAT–PHL flights departing between 6–9 AM arrived on time 89% of the time, versus 59% between 12–3 PM.

Friday is doing you no favors.

SAT–PHL flights arrived on time 93% of the time on Wednesdays and just 68% on Fridays. That gap is worth planning around.

Ticking up lately.

SAT–PHL flights arrived on time 85% of the time over the last three months in the data, compared with 79% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(28 flights)
  • Tue78%(27 flights)
  • Wed93%(28 flights)
  • Thu84%(32 flights)
  • Fri68%(31 flights)
  • Sat81%(31 flights)
  • Sun73%(30 flights)
On-time by departure window
  • 6–9 AM89%(138 flights)
  • 12–3 PM59%(69 flights)
On-time trend by month
80%
May

Jun 58% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202558%26
July 202559%29
August 202593%29
September 202586%29
October 202594%31
April 202683%23
May 202680%39

Based on 211 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.