OnTimeRoutes
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American Airlines MIA to SAT on-time performance

American Airlines nonstop flights from Miami to San Antonio · Aug 2025 – Jul 2026

On-time arrivals
66%
arrived < 15 min late
Cancelled
1.0%
4 flights
Avg arrival delay
26 min
73 min when late
Rank on route
#2 of 2
route average 69% on time

Key facts

  • American Airlines flights on MIA to SAT arrived on time 66% of the time in Aug 2025 – Jul 2026.
  • 1% were cancelled, and 12% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 69% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (40%).

On-time trend by month

30%65%100%July 2025: 48.3% on time, 6.5% cancelledJul ’25August 2025: 50.0% on time, 3.2% cancelledAug ’25September 2025: 80.0% on time, 0.0% cancelledSep ’25October 2025: 73.5% on time, 0.0% cancelledOct ’25November 2025: 72.7% on time, 0.0% cancelledNov ’25December 2025: 75.0% on time, 0.0% cancelledDec ’25January 2026: 75.0% on time, 4.3% cancelledJan ’26February 2026: 81.6% on time, 0.0% cancelledFeb ’26March 2026: 53.3% on time, 3.2% cancelledMar ’26April 2026: 56.7% on time, 0.0% cancelledApr ’26May 2026: 45.2% on time, 0.0% cancelledMay ’26June 2026: 63.3% on time, 0.0% cancelledJun ’26July 2026: 54.8% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft40%
  • Airline (crew, maintenance, cleaning, fueling)39%
  • Air traffic control & airport congestion12%
  • Extreme weather9%
  • Security1%

Other airlines on MIA to SAT

399 American Airlines flights tracked on this route; 4 cancelled, 2 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.