OnTimeRoutes
A

United Airlines LAX to DEN on-time performance

United Airlines nonstop flights from Los Angeles to Denver · Aug 2025 – Jul 2026

On-time arrivals
88%
arrived < 15 min late
Cancelled
0.1%
2 flights
Avg arrival delay
9 min
65 min when late
Rank on route
#1 of 5
route average 82% on time

Key facts

  • United Airlines flights on LAX to DEN arrived on time 88% of the time in Aug 2025 – Jul 2026.
  • 0.1% were cancelled, and 4% arrived an hour or more late.
  • That ranks #1 of 5 airlines on this route, which averaged 82% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (37%).

On-time trend by month

60%80%100%July 2025: 75.5% on time, 0.4% cancelledJul ’25August 2025: 77.9% on time, 0.8% cancelledAug ’25September 2025: 87.6% on time, 0.0% cancelledSep ’25October 2025: 91.4% on time, 0.0% cancelledOct ’25November 2025: 88.3% on time, 0.0% cancelledNov ’25December 2025: 85.6% on time, 0.0% cancelledDec ’25January 2026: 91.3% on time, 0.0% cancelledJan ’26February 2026: 87.4% on time, 0.0% cancelledFeb ’26March 2026: 86.2% on time, 0.0% cancelledMar ’26April 2026: 93.7% on time, 0.0% cancelledApr ’26May 2026: 92.8% on time, 0.0% cancelledMay ’26June 2026: 88.2% on time, 0.0% cancelledJun ’26July 2026: 83.8% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion37%
  • Late-arriving aircraft34%
  • Airline (crew, maintenance, cleaning, fueling)29%
  • Extreme weather1%
  • Security0%

Other airlines on LAX to DEN

Full LAX to DEN comparison →
United Airlines on-time record across all routes →

3,079 United Airlines flights tracked on this route; 2 cancelled, 17 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.