OnTimeRoutes
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Southwest Airlines BWI to ATL on-time performance

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

On-time arrivals
77%
arrived < 15 min late
Cancelled
1.3%
20 flights
Avg arrival delay
13 min
54 min when late
Rank on route
#3 of 4
route average 81% on time

Key facts

  • Southwest Airlines flights on BWI to ATL arrived on time 77% of the time in Aug 2025 – Jul 2026.
  • 1.3% were cancelled, and 7% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 81% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (38%).

On-time trend by month

50%75%100%July 2025: 63.8% on time, 2.8% cancelledJul ’25August 2025: 76.6% on time, 0.7% cancelledAug ’25September 2025: 83.9% on time, 0.0% cancelledSep ’25October 2025: 76.9% on time, 0.0% cancelledOct ’25November 2025: 85.7% on time, 0.7% cancelledNov ’25December 2025: 80.0% on time, 0.7% cancelledDec ’25January 2026: 84.6% on time, 4.9% cancelledJan ’26February 2026: 89.2% on time, 2.9% cancelledFeb ’26March 2026: 62.7% on time, 1.7% cancelledMar ’26April 2026: 84.9% on time, 0.0% cancelledApr ’26May 2026: 68.9% on time, 0.8% cancelledMay ’26June 2026: 73.6% on time, 1.5% cancelledJun ’26July 2026: 63.2% on time, 2.2% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft38%
  • Airline (crew, maintenance, cleaning, fueling)34%
  • Air traffic control & airport congestion20%
  • Extreme weather6%
  • Security2%

Other airlines on BWI to ATL

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

1,566 Southwest Airlines flights tracked on this route; 20 cancelled, 7 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.