United Airlines RDU to IAD on-time performance
United Airlines nonstop flights from Raleigh/Durham to Washington · Aug 2025 – Jul 2026
On-time arrivals
87%
arrived < 15 min late
Cancelled
1.2%
13 flights
Avg arrival delay
10 min
72 min when late
Rank on route
#1 of 2
route average 86% on time
Key facts
- United Airlines flights on RDU to IAD arrived on time 87% of the time in Aug 2025 – Jul 2026.
- 1.2% were cancelled, and 5% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 86% on time overall.
- The largest source of delay minutes was late-arriving aircraft (51%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft51%
- Air traffic control & airport congestion24%
- Airline (crew, maintenance, cleaning, fueling)23%
- Extreme weather2%
- Security0%
Other airlines on RDU to IAD
- Republic Airways81% on time · 15 min avg delay
Full RDU to IAD comparison →
United Airlines on-time record across all routes →
1,083 United Airlines flights tracked on this route; 13 cancelled, 0 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.