OnTimeRoutes
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Southwest Airlines ATL to MCI on-time performance

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

On-time arrivals
79%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
11 min
47 min when late
Rank on route
#4 of 5
route average 83% on time

Key facts

  • Southwest Airlines flights on ATL to MCI arrived on time 79% of the time in Aug 2025 – Jul 2026.
  • 0% were cancelled, and 4% arrived an hour or more late.
  • That ranks #4 of 5 airlines on this route, which averaged 83% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (46%).

On-time trend by month

40%70%100%July 2025: 58.1% on time, 0.0% cancelledJul ’25August 2025: 77.4% on time, 0.0% cancelledAug ’25September 2025: 90.0% on time, 0.0% cancelledSep ’25October 2025: 77.4% on time, 0.0% cancelledOct ’25November 2025: 86.7% on time, 0.0% cancelledNov ’25December 2025: 71.0% on time, 0.0% cancelledDec ’25January 2026: 83.9% on time, 0.0% cancelledJan ’26February 2026: 64.3% on time, 0.0% cancelledFeb ’26March 2026: 74.2% on time, 0.0% cancelledMar ’26April 2026: 90.0% on time, 0.0% cancelledApr ’26May 2026: 64.5% on time, 0.0% cancelledMay ’26June 2026: 73.3% on time, 0.0% cancelledJun ’26July 2026: 96.8% 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 aircraft46%
  • Airline (crew, maintenance, cleaning, fueling)41%
  • Air traffic control & airport congestion10%
  • Security3%
  • Extreme weather1%

Other airlines on ATL to MCI

Full ATL to MCI comparison →
Southwest Airlines on-time record across all routes →

365 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.