OnTimeRoutes
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United Airlines DEN to SNA on-time performance

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

On-time arrivals
86%
arrived < 15 min late
Cancelled
0.4%
7 flights
Avg arrival delay
8 min
48 min when late
Rank on route
#2 of 3
route average 81% on time

Key facts

  • United Airlines flights on DEN to SNA arrived on time 86% of the time in Aug 2025 – Jul 2026.
  • 0.4% were cancelled, and 3% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 81% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (43%).

On-time trend by month

50%75%100%July 2025: 67.6% on time, 0.0% cancelledJul ’25August 2025: 86.0% on time, 2.7% cancelledAug ’25September 2025: 82.8% on time, 0.0% cancelledSep ’25October 2025: 88.1% on time, 0.0% cancelledOct ’25November 2025: 92.9% on time, 0.0% cancelledNov ’25December 2025: 88.5% on time, 0.0% cancelledDec ’25January 2026: 90.0% on time, 0.0% cancelledJan ’26February 2026: 88.9% on time, 0.0% cancelledFeb ’26March 2026: 89.9% on time, 1.3% cancelledMar ’26April 2026: 88.4% on time, 0.0% cancelledApr ’26May 2026: 84.5% on time, 0.0% cancelledMay ’26June 2026: 76.1% on time, 0.0% cancelledJun ’26July 2026: 80.3% on time, 0.6% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft43%
  • Airline (crew, maintenance, cleaning, fueling)36%
  • Air traffic control & airport congestion20%
  • Extreme weather2%
  • Security0%

Other airlines on DEN to SNA

1,869 United Airlines flights tracked on this route; 7 cancelled, 9 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.