OnTimeRoutes
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United Airlines AUS to DEN on-time performance

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

On-time arrivals
85%
arrived < 15 min late
Cancelled
0.8%
16 flights
Avg arrival delay
12 min
70 min when late
Rank on route
#1 of 4
route average 79% on time

Key facts

  • United Airlines flights on AUS to DEN arrived on time 85% of the time in Aug 2025 – Jul 2026.
  • 0.8% were cancelled, and 6% arrived an hour or more late.
  • That ranks #1 of 4 airlines on this route, which averaged 79% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (41%).

On-time trend by month

50%75%100%July 2025: 67.9% on time, 3.6% cancelledJul ’25August 2025: 73.7% on time, 2.2% cancelledAug ’25September 2025: 78.8% on time, 1.8% cancelledSep ’25October 2025: 86.2% on time, 0.0% cancelledOct ’25November 2025: 85.0% on time, 0.6% cancelledNov ’25December 2025: 79.5% on time, 0.0% cancelledDec ’25January 2026: 85.1% on time, 4.1% cancelledJan ’26February 2026: 86.9% on time, 0.0% cancelledFeb ’26March 2026: 84.8% on time, 0.6% cancelledMar ’26April 2026: 93.3% on time, 0.7% cancelledApr ’26May 2026: 87.6% on time, 0.0% cancelledMay ’26June 2026: 88.4% on time, 0.0% cancelledJun ’26July 2026: 87.3% 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

  • Late-arriving aircraft41%
  • Air traffic control & airport congestion38%
  • Airline (crew, maintenance, cleaning, fueling)20%
  • Extreme weather1%
  • Security0%

Other airlines on AUS to DEN

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

1,899 United Airlines flights tracked on this route; 16 cancelled, 7 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.