United Airlines ORD to SAT on-time performance
United Airlines nonstop flights from Chicago to San Antonio · Aug 2025 – Jul 2026
On-time arrivals
75%
arrived < 15 min late
Cancelled
1.3%
11 flights
Avg arrival delay
19 min
71 min when late
Rank on route
#4 of 5
route average 74% on time
Key facts
- United Airlines flights on ORD to SAT arrived on time 75% of the time in Aug 2025 – Jul 2026.
- 1.3% were cancelled, and 9% arrived an hour or more late.
- That ranks #4 of 5 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was late-arriving aircraft (48%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft48%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion16%
- Extreme weather8%
- Security0%
Other airlines on ORD to SAT
- American Airlines66% on time · 28 min avg delay
- Envoy Air77% on time · 14 min avg delay
- SkyWest Airlines81% on time · 12 min avg delay
- Republic Airways82% on time · 12 min avg delay
Full ORD to SAT comparison →
United Airlines on-time record across all routes →
860 United Airlines flights tracked on this route; 11 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.