United Airlines LAS to DEN on-time performance
United Airlines nonstop flights from Las Vegas to Denver · Aug 2025 – Jul 2026
On-time arrivals
84%
arrived < 15 min late
Cancelled
0.4%
9 flights
Avg arrival delay
11 min
66 min when late
Rank on route
#1 of 3
route average 77% on time
Key facts
- United Airlines flights on LAS to DEN arrived on time 84% of the time in Aug 2025 – Jul 2026.
- 0.4% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 77% 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 aircraft41%
- Airline (crew, maintenance, cleaning, fueling)15%
- Extreme weather3%
- Security0%
Other airlines on LAS to DEN
- Southwest Airlines71% on time · 17 min avg delay
- Frontier Airlines78% on time · 21 min avg delay
Full LAS to DEN comparison →
United Airlines on-time record across all routes →
2,388 United Airlines flights tracked on this route; 9 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.