United Airlines SAT to IAH on-time performance
United Airlines nonstop flights from San Antonio to Houston · Aug 2025 – Jul 2026
On-time arrivals
82%
arrived < 15 min late
Cancelled
0.6%
13 flights
Avg arrival delay
12 min
60 min when late
Rank on route
#2 of 2
route average 82% on time
Key facts
- United Airlines flights on SAT to IAH arrived on time 82% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 5% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 82% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (49%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion49%
- Late-arriving aircraft27%
- Airline (crew, maintenance, cleaning, fueling)22%
- Extreme weather2%
- Security0%
Other airlines on SAT to IAH
- SkyWest Airlines86% on time · 11 min avg delay
Full SAT to IAH comparison →
United Airlines on-time record across all routes →
2,300 United Airlines flights tracked on this route; 13 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.