OnTimeRoutes
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Southwest Airlines CMH to DEN on-time performance

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

On-time arrivals
80%
arrived < 15 min late
Cancelled
0.4%
4 flights
Avg arrival delay
14 min
63 min when late
Rank on route
#2 of 3
route average 80% on time

Key facts

  • Southwest Airlines flights on CMH to DEN arrived on time 80% of the time in Aug 2025 – Jul 2026.
  • 0.4% were cancelled, and 6% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 80% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (42%).

On-time trend by month

40%70%100%July 2025: 67.0% on time, 1.1% cancelledJul ’25August 2025: 76.3% on time, 0.0% cancelledAug ’25September 2025: 86.5% on time, 0.0% cancelledSep ’25October 2025: 87.4% on time, 0.0% cancelledOct ’25November 2025: 78.4% on time, 0.0% cancelledNov ’25December 2025: 57.3% on time, 0.0% cancelledDec ’25January 2026: 88.7% on time, 6.1% cancelledJan ’26February 2026: 88.9% on time, 0.0% cancelledFeb ’26March 2026: 72.0% on time, 0.0% cancelledMar ’26April 2026: 89.5% on time, 0.0% cancelledApr ’26May 2026: 75.0% on time, 0.0% cancelledMay ’26June 2026: 78.0% on time, 0.0% cancelledJun ’26July 2026: 82.0% 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 aircraft42%
  • Air traffic control & airport congestion28%
  • Airline (crew, maintenance, cleaning, fueling)26%
  • Extreme weather4%
  • Security0%

Other airlines on CMH to DEN

919 Southwest Airlines flights tracked on this route; 4 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.