OnTimeRoutes
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Southwest Airlines ATL to DAL on-time performance

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

On-time arrivals
77%
arrived < 15 min late
Cancelled
1.5%
23 flights
Avg arrival delay
14 min
57 min when late
Rank on route
#2 of 2
route average 81% on time

Key facts

  • Southwest Airlines flights on ATL to DAL arrived on time 77% of the time in Aug 2025 – Jul 2026.
  • 1.5% were cancelled, and 7% arrived an hour or more late.
  • That ranks #2 of 2 airlines on this route, which averaged 81% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (54%).

On-time trend by month

50%75%100%July 2025: 72.9% on time, 2.1% cancelledJul ’25August 2025: 77.8% on time, 0.0% cancelledAug ’25September 2025: 85.9% on time, 0.0% cancelledSep ’25October 2025: 75.7% on time, 0.7% cancelledOct ’25November 2025: 76.0% on time, 2.3% cancelledNov ’25December 2025: 80.8% on time, 0.0% cancelledDec ’25January 2026: 89.3% on time, 7.4% cancelledJan ’26February 2026: 87.1% on time, 1.7% cancelledFeb ’26March 2026: 75.6% on time, 4.0% cancelledMar ’26April 2026: 79.6% on time, 0.9% cancelledApr ’26May 2026: 64.7% on time, 1.7% cancelledMay ’26June 2026: 65.8% on time, 0.0% cancelledJun ’26July 2026: 65.8% 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 aircraft54%
  • Airline (crew, maintenance, cleaning, fueling)21%
  • Air traffic control & airport congestion18%
  • Extreme weather5%
  • Security1%

Other airlines on ATL to DAL

1,523 Southwest Airlines flights tracked on this route; 23 cancelled, 10 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.