United Airlines SAT to IAD on-time performance
United Airlines nonstop flights from San Antonio to Washington · Aug 2025 – Jul 2026
On-time arrivals
94%
arrived < 15 min late
Cancelled
0.6%
4 flights
Avg arrival delay
7 min
103 min when late
Rank on route
#1 of 1
route average 94% on time
Key facts
- United Airlines flights on SAT to IAD arrived on time 94% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 2% arrived an hour or more late.
- That ranks #1 of 1 airlines on this route, which averaged 94% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (50%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)50%
- Late-arriving aircraft26%
- Air traffic control & airport congestion22%
- Extreme weather3%
- Security0%
Other airlines on SAT to IAD
641 United Airlines flights tracked on this route; 4 cancelled, 4 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.