United Airlines IAD to RDU on-time performance
United Airlines nonstop flights from Washington to Raleigh/Durham · Aug 2025 – Jul 2026
On-time arrivals
84%
arrived < 15 min late
Cancelled
1.2%
13 flights
Avg arrival delay
12 min
69 min when late
Rank on route
#1 of 2
route average 83% on time
Key facts
- United Airlines flights on IAD to RDU arrived on time 84% 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 83% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (38%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)38%
- Late-arriving aircraft34%
- Air traffic control & airport congestion15%
- Extreme weather13%
- Security0%
Other airlines on IAD to RDU
- Republic Airways81% on time · 16 min avg delay
Full IAD to RDU comparison →
United Airlines on-time record across all routes →
1,083 United Airlines flights tracked on this route; 13 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.