United Airlines SFO to IAD on-time performance
United Airlines nonstop flights from San Francisco to Washington · Aug 2025 – Jul 2026
On-time arrivals
84%
arrived < 15 min late
Cancelled
0.7%
19 flights
Avg arrival delay
11 min
61 min when late
Rank on route
#1 of 2
route average 84% on time
Key facts
- United Airlines flights on SFO to IAD arrived on time 84% of the time in Aug 2025 – Jul 2026.
- 0.7% were cancelled, and 5% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 84% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (43%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)43%
- Late-arriving aircraft40%
- Air traffic control & airport congestion16%
- Extreme weather0%
- Security0%
Other airlines on SFO to IAD
- Alaska Airlines49% on time · 22 min avg delay
Full SFO to IAD comparison →
United Airlines on-time record across all routes →
2,693 United Airlines flights tracked on this route; 19 cancelled, 2 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.