United Airlines COS to DEN on-time performance
United Airlines nonstop flights from Colorado Springs to Denver · Aug 2025 – Jul 2026
On-time arrivals
74%
arrived < 15 min late
Cancelled
0.5%
3 flights
Avg arrival delay
20 min
75 min when late
Rank on route
#3 of 3
route average 81% on time
Key facts
- United Airlines flights on COS to DEN arrived on time 74% of the time in Aug 2025 – Jul 2026.
- 0.5% were cancelled, and 10% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 81% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (42%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion42%
- Late-arriving aircraft36%
- Airline (crew, maintenance, cleaning, fueling)17%
- Extreme weather5%
- Security0%
Other airlines on COS to DEN
- SkyWest Airlines83% on time · 14 min avg delay
- Southwest Airlines77% on time · 14 min avg delay
Full COS to DEN comparison →
United Airlines on-time record across all routes →
579 United Airlines flights tracked on this route; 3 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.