OnTimeRoutes
C

United Airlines CHS to DEN on-time performance

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

On-time arrivals
74%
arrived < 15 min late
Cancelled
0.7%
3 flights
Avg arrival delay
19 min
69 min when late
Rank on route
#1 of 2
route average 69% on time

Key facts

  • United Airlines flights on CHS to DEN arrived on time 74% of the time in Aug 2025 – Jul 2026.
  • 0.7% were cancelled, and 9% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 69% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (42%).

On-time trend by month

30%65%100%July 2025: 46.4% on time, 0.0% cancelledJul ’25August 2025: 53.3% on time, 0.0% cancelledAug ’25September 2025: 66.7% on time, 0.0% cancelledSep ’25October 2025: 61.3% on time, 0.0% cancelledOct ’25November 2025: 82.8% on time, 3.3% cancelledNov ’25December 2025: 80.6% on time, 0.0% cancelledDec ’25January 2026: 93.3% on time, 3.2% cancelledJan ’26February 2026: 78.6% on time, 0.0% cancelledFeb ’26March 2026: 83.9% on time, 1.7% cancelledMar ’26April 2026: 76.3% on time, 0.0% cancelledApr ’26May 2026: 79.2% on time, 0.0% cancelledMay ’26June 2026: 60.0% on time, 0.0% cancelledJun ’26July 2026: 58.1% 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

  • Air traffic control & airport congestion42%
  • Late-arriving aircraft33%
  • Airline (crew, maintenance, cleaning, fueling)22%
  • Extreme weather3%
  • Security0%

Other airlines on CHS to DEN

439 United Airlines flights tracked on this route; 3 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.