OnTimeRoutes
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Southwest Airlines CMH to ATL on-time performance

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

On-time arrivals
82%
arrived < 15 min late
Cancelled
0.9%
3 flights
Avg arrival delay
10 min
48 min when late
Rank on route
#2 of 3
route average 85% on time

Key facts

  • Southwest Airlines flights on CMH to ATL arrived on time 82% of the time in Aug 2025 – Jul 2026.
  • 0.9% were cancelled, and 4% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 85% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (67%).

On-time trend by month

50%75%100%July 2025: 74.2% on time, 0.0% cancelledJul ’25August 2025: 87.1% on time, 0.0% cancelledAug ’25September 2025: 90.0% on time, 0.0% cancelledSep ’25October 2025: 70.0% on time, 0.0% cancelledOct ’25November 2025: 90.0% on time, 0.0% cancelledNov ’25December 2025: 77.4% on time, 0.0% cancelledDec ’25January 2026: 96.4% on time, 9.7% cancelledJan ’26February 2026: 85.7% on time, 0.0% cancelledFeb ’26March 2026: 70.8% on time, 0.0% cancelledMar ’26April 2026: 88.9% on time, 0.0% cancelledApr ’26May 2026: 83.3% on time, 0.0% cancelledMay ’26June 2026: 66.7% on time, 0.0% cancelledJun ’26July 2026: 76.9% 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 aircraft67%
  • Air traffic control & airport congestion17%
  • Airline (crew, maintenance, cleaning, fueling)16%
  • Extreme weather0%
  • Security0%

Other airlines on CMH to ATL

322 Southwest Airlines flights tracked on this route; 3 cancelled, 1 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.