United Airlines DEN to ORD on-time performance
United Airlines nonstop flights from Denver to Chicago · Aug 2025 – Jul 2026
On-time arrivals
72%
arrived < 15 min late
Cancelled
0.8%
31 flights
Avg arrival delay
23 min
79 min when late
Rank on route
#3 of 5
route average 72% on time
Key facts
- United Airlines flights on DEN to ORD arrived on time 72% of the time in Aug 2025 – Jul 2026.
- 0.8% were cancelled, and 10% arrived an hour or more late.
- That ranks #3 of 5 airlines on this route, which averaged 72% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (50%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion50%
- Late-arriving aircraft31%
- Airline (crew, maintenance, cleaning, fueling)16%
- Extreme weather3%
- Security0%
Other airlines on DEN to ORD
- American Airlines74% on time · 33 min avg delay
- Southwest Airlines68% on time · 20 min avg delay
- Frontier Airlines67% on time · 29 min avg delay
- Envoy Air74% on time · 16 min avg delay
Full DEN to ORD comparison →
United Airlines on-time record across all routes →
3,815 United Airlines flights tracked on this route; 31 cancelled, 23 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.