United Airlines RDU to ORD on-time performance
United Airlines nonstop flights from Raleigh/Durham to Chicago · Aug 2025 – Jul 2026
On-time arrivals
76%
arrived < 15 min late
Cancelled
1.5%
19 flights
Avg arrival delay
24 min
96 min when late
Rank on route
#3 of 7
route average 75% on time
Key facts
- United Airlines flights on RDU to ORD arrived on time 76% of the time in Aug 2025 – Jul 2026.
- 1.5% were cancelled, and 9% arrived an hour or more late.
- That ranks #3 of 7 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (38%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion38%
- Late-arriving aircraft28%
- Airline (crew, maintenance, cleaning, fueling)21%
- Extreme weather14%
- Security0%
Other airlines on RDU to ORD
- Republic Airways72% on time · 23 min avg delay
- American Airlines81% on time · 30 min avg delay
- Envoy Air72% on time · 25 min avg delay
- SkyWest Airlines81% on time · 38 min avg delay
- Frontier Airlines58% on time · 63 min avg delay
- PSA Airlines50% on time · 16 min avg delay
Full RDU to ORD comparison →
United Airlines on-time record across all routes →
1,275 United Airlines flights tracked on this route; 19 cancelled, 3 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.