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Route Reliability

San Antonio → Houston

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

81
Pretty Reliable
WanderNerd Reliability Score
75%
Arrive within 15 minutes
7 min
Average arrival delay
0.4%
Cancelled
1,409
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 75% of the time across 1,409 flights. No comparison to make.

What the data says

Morning-you made the right choice.

SAT–HOU flights departing between 3–6 AM arrived on time 95% of the time, versus 58% between 6–9 PM.

Skip Thursday if you can.

SAT–HOU flights arrived on time 80% of the time on Saturdays. On Thursdays: 67%.

Recent months have been rougher.

SAT–HOU flights arrived on time 58% of the time over the last three months in the data, compared with 87% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon75%(198 flights)
  • Tue79%(187 flights)
  • Wed74%(185 flights)
  • Thu67%(198 flights)
  • Fri77%(195 flights)
  • Sat80%(217 flights)
  • Sun72%(223 flights)
On-time by departure window
  • 3–6 AM95%(149 flights)
  • 6–9 AM92%(362 flights)
  • 9 AM–12 PM89%(127 flights)
  • 12–3 PM65%(177 flights)
  • 3–6 PM60%(211 flights)
  • 6–9 PM58%(364 flights)
  • 9 PM–12 AM92%(13 flights)
On-time trend by month
55%
May

Jun 70% → May 55% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%127
July 202563%131
August 202578%143
September 202584%141
October 202583%139
November 202580%119
December 202589%122
January 202687%97
February 202686%83
March 202657%100
April 202662%98
May 202655%103

Same trip, other airports

Keep nerding

Based on 1,409 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.