OnTimeRoutes
B

United Airlines DEN to SJC on-time performance

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

On-time arrivals
81%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
13 min
62 min when late
Rank on route
#1 of 3
route average 74% on time

Key facts

  • United Airlines flights on DEN to SJC arrived on time 81% of the time in Aug 2025 – Jul 2026.
  • 0% were cancelled, and 7% arrived an hour or more late.
  • That ranks #1 of 3 airlines on this route, which averaged 74% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (59%).

On-time trend by month

40%70%100%July 2025: 54.9% on time, 0.0% cancelledJul ’25August 2025: 62.2% on time, 0.0% cancelledAug ’25September 2025: 84.5% on time, 0.0% cancelledSep ’25October 2025: 92.2% on time, 0.0% cancelledOct ’25November 2025: 89.1% on time, 0.0% cancelledNov ’25December 2025: 79.7% on time, 0.0% cancelledDec ’25January 2026: 88.9% on time, 0.0% cancelledJan ’26February 2026: 84.2% on time, 0.0% cancelledFeb ’26March 2026: 90.3% on time, 0.0% cancelledMar ’26April 2026: 90.2% on time, 0.0% cancelledApr ’26May 2026: 83.7% on time, 0.0% cancelledMay ’26June 2026: 67.5% on time, 0.0% cancelledJun ’26July 2026: 56.6% 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 aircraft59%
  • Airline (crew, maintenance, cleaning, fueling)30%
  • Air traffic control & airport congestion10%
  • Extreme weather1%
  • Security0%

Other airlines on DEN to SJC

988 United Airlines flights tracked on this route; 0 cancelled, 0 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.