OnTimeRoutes
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United Airlines MKE to DEN on-time performance

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

On-time arrivals
78%
arrived < 15 min late
Cancelled
0.1%
1 flights
Avg arrival delay
15 min
62 min when late
Rank on route
#3 of 4
route average 79% on time

Key facts

  • United Airlines flights on MKE to DEN arrived on time 78% of the time in Aug 2025 – Jul 2026.
  • 0.1% were cancelled, and 7% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 79% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (42%).

On-time trend by month

50%75%100%July 2025: 66.7% on time, 1.7% cancelledJul ’25August 2025: 63.8% on time, 0.0% cancelledAug ’25September 2025: 76.5% on time, 0.0% cancelledSep ’25October 2025: 81.0% on time, 0.0% cancelledOct ’25November 2025: 93.2% on time, 0.0% cancelledNov ’25December 2025: 66.1% on time, 0.0% cancelledDec ’25January 2026: 66.1% on time, 0.0% cancelledJan ’26February 2026: 85.7% on time, 0.0% cancelledFeb ’26March 2026: 79.0% on time, 0.0% cancelledMar ’26April 2026: 83.3% on time, 0.0% cancelledApr ’26May 2026: 80.4% on time, 0.0% cancelledMay ’26June 2026: 86.2% on time, 0.0% cancelledJun ’26July 2026: 82.8% on time, 3.3% 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 congestion42%
  • Airline (crew, maintenance, cleaning, fueling)32%
  • Late-arriving aircraft18%
  • Extreme weather8%
  • Security0%

Other airlines on MKE to DEN

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

714 United Airlines flights tracked on this route; 1 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.