United Airlines DEN to SAT on-time performance
United Airlines nonstop flights from Denver to San Antonio · Aug 2025 – Jul 2026
On-time arrivals
83%
arrived < 15 min late
Cancelled
0.2%
3 flights
Avg arrival delay
13 min
71 min when late
Rank on route
#1 of 4
route average 77% on time
Key facts
- United Airlines flights on DEN to SAT arrived on time 83% of the time in Aug 2025 – Jul 2026.
- 0.2% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was late-arriving aircraft (54%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft54%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion15%
- Extreme weather1%
- Security0%
Other airlines on DEN to SAT
- Southwest Airlines71% on time · 16 min avg delay
- Frontier Airlines81% on time · 12 min avg delay
- SkyWest Airlines79% on time · 41 min avg delay
Full DEN to SAT comparison →
United Airlines on-time record across all routes →
1,203 United Airlines flights tracked on this route; 3 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.