United Airlines SFO to SAT on-time performance
United Airlines nonstop flights from San Francisco to San Antonio · Aug 2025 – Jul 2026
On-time arrivals
79%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
17 min
79 min when late
Rank on route
#1 of 2
route average 77% on time
Key facts
- United Airlines flights on SFO to SAT arrived on time 79% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 10% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was late-arriving aircraft (68%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft68%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion4%
- Extreme weather0%
- Security0%
Other airlines on SFO to SAT
- SkyWest Airlines77% on time · 18 min avg delay
Full SFO to SAT comparison →
United Airlines on-time record across all routes →
82 United Airlines flights tracked on this route; 0 cancelled, 1 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.