OnTimeRoutes
C

Southwest Airlines DAL to BNA on-time performance

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

On-time arrivals
71%
arrived < 15 min late
Cancelled
1.4%
35 flights
Avg arrival delay
17 min
57 min when late
Rank on route
#1 of 1
route average 71% on time

Key facts

  • Southwest Airlines flights on DAL to BNA arrived on time 71% of the time in Aug 2025 – Jul 2026.
  • 1.4% were cancelled, and 9% arrived an hour or more late.
  • That ranks #1 of 1 airlines on this route, which averaged 71% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (51%).

On-time trend by month

40%70%100%July 2025: 67.3% on time, 1.4% cancelledJul ’25August 2025: 78.8% on time, 0.5% cancelledAug ’25September 2025: 87.5% on time, 0.0% cancelledSep ’25October 2025: 68.4% on time, 1.4% cancelledOct ’25November 2025: 76.5% on time, 2.0% cancelledNov ’25December 2025: 81.9% on time, 0.5% cancelledDec ’25January 2026: 84.2% on time, 8.1% cancelledJan ’26February 2026: 82.8% on time, 0.6% cancelledFeb ’26March 2026: 67.3% on time, 0.5% cancelledMar ’26April 2026: 65.2% on time, 1.0% cancelledApr ’26May 2026: 60.9% on time, 1.0% cancelledMay ’26June 2026: 50.5% on time, 1.0% cancelledJun ’26July 2026: 60.3% on time, 1.3% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft51%
  • Airline (crew, maintenance, cleaning, fueling)30%
  • Air traffic control & airport congestion16%
  • Extreme weather3%
  • Security0%

Other airlines on DAL to BNA

2,433 Southwest Airlines flights tracked on this route; 35 cancelled, 3 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.