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Airport Reliability

SAT · San Antonio

San Antonio International Airport

82%
Departures within 15 minutes
11 min
Average departure delay
78%
Arrivals within 15 minutes
1.3%
Departures cancelled

Based on 41,216 departures and 41,218 arrivals. Data through May 2026.

What the data says

Morning flights do better here.

Departures from SAT departing between 3–6 AM arrived on time 95% of the time, versus 69% between 6–9 PM.

Tuesday comes out ahead.

A small edge: 86% on time on Tuesdays against 79% on Sundays.

Slipping a little lately.

Departures from SAT arrived on time 82% of the time over the last three months in the data, compared with 86% in the three months before that.

When SAT gets messy

On-time by departure window
  • 3–6 AM95%(3356 flights)
  • 6–9 AM91%(10407 flights)
  • 9 AM–12 PM87%(5868 flights)
  • 12–3 PM80%(8213 flights)
  • 3–6 PM74%(7102 flights)
  • 6–9 PM69%(5215 flights)
  • 9 PM–12 AM75%(404 flights)
On-time by weekday
  • Mon82%(6169 flights)
  • Tue86%(5552 flights)
  • Wed85%(5516 flights)
  • Thu81%(6076 flights)
  • Fri82%(6142 flights)
  • Sat84%(5018 flights)
  • Sun79%(6092 flights)
On-time trend by month
81%
May

Jun 76% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%3626
July 202577%3688
August 202582%3429
September 202586%3314
October 202584%3675
November 202585%3419
December 202585%3585
January 202686%2871
February 202687%2688
March 202681%3396
April 202683%3380
May 202681%3494

Airlines departing SAT

Busiest routes from SAT

Based on 41,216 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.