United Airlines SAT to SFO on-time performance
United Airlines nonstop flights from San Antonio to San Francisco · Aug 2025 – Jul 2026
On-time arrivals
88%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
13 min
100 min when late
Rank on route
#1 of 2
route average 86% on time
Key facts
- United Airlines flights on SAT to SFO arrived on time 88% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 86% on time overall.
- The largest source of delay minutes was late-arriving aircraft (38%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft38%
- Air traffic control & airport congestion36%
- Airline (crew, maintenance, cleaning, fueling)26%
- Extreme weather0%
- Security0%
Other airlines on SAT to SFO
- SkyWest Airlines86% on time · 17 min avg delay
Full SAT to SFO comparison →
United Airlines on-time record across all routes →
83 United Airlines flights tracked on this route; 0 cancelled, 0 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.