OnTimeRoutes
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United Airlines JAX to DEN on-time performance

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

On-time arrivals
88%
arrived < 15 min late
Cancelled
0.3%
2 flights
Avg arrival delay
11 min
84 min when late
Rank on route
#1 of 2
route average 82% on time

Key facts

  • United Airlines flights on JAX to DEN arrived on time 88% of the time in Aug 2025 – Jul 2026.
  • 0.3% were cancelled, and 5% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 82% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (43%).

On-time trend by month

70%85%100%July 2025: 87.1% on time, 0.0% cancelledJul ’25August 2025: 96.8% on time, 0.0% cancelledAug ’25September 2025: 88.9% on time, 0.0% cancelledSep ’25October 2025: 90.3% on time, 0.0% cancelledOct ’25November 2025: 98.3% on time, 0.0% cancelledNov ’25December 2025: 88.7% on time, 0.0% cancelledDec ’25January 2026: 92.9% on time, 0.0% cancelledJan ’26February 2026: 87.5% on time, 2.0% cancelledFeb ’26March 2026: 83.3% on time, 0.0% cancelledMar ’26April 2026: 90.0% on time, 0.0% cancelledApr ’26May 2026: 81.0% on time, 0.0% cancelledMay ’26June 2026: 80.4% on time, 0.0% cancelledJun ’26July 2026: 80.4% on time, 1.9% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)43%
  • Late-arriving aircraft32%
  • Air traffic control & airport congestion21%
  • Extreme weather4%
  • Security0%

Other airlines on JAX to DEN

638 United Airlines flights tracked on this route; 2 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.