OnTimeRoutes
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Southwest Airlines BNA to BWI on-time performance

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

On-time arrivals
77%
arrived < 15 min late
Cancelled
1.8%
31 flights
Avg arrival delay
13 min
52 min when late
Rank on route
#1 of 2
route average 77% on time

Key facts

  • Southwest Airlines flights on BNA to BWI arrived on time 77% of the time in Aug 2025 – Jul 2026.
  • 1.8% were cancelled, and 6% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 77% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (55%).

On-time trend by month

40%70%100%July 2025: 70.3% on time, 3.9% cancelledJul ’25August 2025: 81.3% on time, 2.0% cancelledAug ’25September 2025: 87.2% on time, 0.7% cancelledSep ’25October 2025: 73.0% on time, 0.0% cancelledOct ’25November 2025: 83.8% on time, 0.7% cancelledNov ’25December 2025: 81.4% on time, 3.7% cancelledDec ’25January 2026: 94.2% on time, 7.7% cancelledJan ’26February 2026: 85.6% on time, 3.1% cancelledFeb ’26March 2026: 73.3% on time, 2.0% cancelledMar ’26April 2026: 79.4% on time, 1.3% cancelledApr ’26May 2026: 73.0% on time, 0.0% cancelledMay ’26June 2026: 63.4% on time, 0.7% cancelledJun ’26July 2026: 56.1% on time, 0.7% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft55%
  • Airline (crew, maintenance, cleaning, fueling)29%
  • Air traffic control & airport congestion12%
  • Extreme weather2%
  • Security1%

Other airlines on BNA to BWI

1,759 Southwest Airlines flights tracked on this route; 31 cancelled, 5 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.