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Route Reliability

Houston → San Antonio

HOU–SAT · 192 miles · William P. Hobby Airport to San Antonio International Airport

88
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
5 min
Average arrival delay
0%
Cancelled
1,408
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 80% of the time across 1,408 flights. No comparison to make.

What the data says

Morning-you made the right choice.

HOU–SAT flights departing between 6–9 AM arrived on time 95% of the time, versus 65% between 9 PM–12 AM.

Sunday scaries are real for this one.

HOU–SAT flights arrived on time 84% of the time on Wednesdays. On Sundays: 73%.

It basically never cancels.

Out of 1,408 scheduled flights, only 0.0% were cancelled.

Recent months have been rougher.

HOU–SAT flights arrived on time 72% of the time over the last three months in the data, compared with 82% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon80%(200 flights)
  • Tue83%(187 flights)
  • Wed84%(185 flights)
  • Thu80%(199 flights)
  • Fri83%(197 flights)
  • Sat81%(216 flights)
  • Sun73%(223 flights)
On-time by departure window
  • 6–9 AM95%(238 flights)
  • 9 AM–12 PM87%(348 flights)
  • 12–3 PM73%(165 flights)
  • 3–6 PM82%(132 flights)
  • 6–9 PM75%(304 flights)
  • 9 PM–12 AM65%(220 flights)
On-time trend by month
72%
May

Jun 74% → May 72% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202574%129
July 202574%131
August 202585%142
September 202594%141
October 202585%140
November 202581%119
December 202588%122
January 202685%97
February 202673%84
March 202666%101
April 202679%98
May 202672%103

Same trip, other airports

Keep nerding

Based on 1,408 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.