OnTimeRoutes
C

Southwest Airlines DEN to CHS on-time performance

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

On-time arrivals
68%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
14 min
39 min when late
Rank on route
#2 of 2
route average 77% on time

Key facts

  • Southwest Airlines flights on DEN to CHS arrived on time 68% of the time in Aug 2025 – Jul 2026.
  • 0% were cancelled, and 5% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 77% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (39%).

On-time trend by month

30%65%100%July 2025: 53.3% on time, 0.0% cancelledJul ’25August 2025: 68.4% on time, 0.0% cancelledAug ’25September 2025: 64.7% on time, 0.0% cancelledSep ’25October 2025: 52.4% on time, 0.0% cancelledOct ’25November 2025: 88.9% on time, 0.0% cancelledNov ’25December 2025: 86.7% on time, 0.0% cancelledDec ’25January 2026: 80.8% on time, 0.0% cancelledJan ’26February 2026: 70.4% on time, 0.0% cancelledFeb ’26March 2026: 100.0% on time, 0.0% cancelledMar ’26June 2026: 63.0% on time, 0.0% cancelledJun ’26July 2026: 46.7% 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 aircraft39%
  • Airline (crew, maintenance, cleaning, fueling)35%
  • Air traffic control & airport congestion26%
  • Extreme weather0%
  • Security0%

Other airlines on DEN to CHS

204 Southwest 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.