United Airlines LAX to IAD on-time performance
United Airlines nonstop flights from Los Angeles to Washington · Aug 2025 – Jul 2026
On-time arrivals
88%
arrived < 15 min late
Cancelled
0.6%
14 flights
Avg arrival delay
7 min
53 min when late
Rank on route
#2 of 3
route average 87% on time
Key facts
- United Airlines flights on LAX to IAD arrived on time 88% of the time in Aug 2025 – Jul 2026.
- 0.6% were cancelled, and 3% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 87% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (42%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)42%
- Late-arriving aircraft38%
- Air traffic control & airport congestion20%
- Extreme weather0%
- Security0%
Other airlines on LAX to IAD
- American Airlines77% on time · 18 min avg delay
- Alaska Airlines89% on time · 6 min avg delay
Full LAX to IAD comparison →
United Airlines on-time record across all routes →
2,339 United Airlines flights tracked on this route; 14 cancelled, 7 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.