OnTimeRoutes
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Southwest Airlines BWI to DTW on-time performance

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

On-time arrivals
76%
arrived < 15 min late
Cancelled
2.1%
16 flights
Avg arrival delay
15 min
53 min when late
Rank on route
#3 of 4
route average 82% on time

Key facts

  • Southwest Airlines flights on BWI to DTW arrived on time 76% of the time in Aug 2025 – Jul 2026.
  • 2.1% were cancelled, and 7% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 82% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (50%).

On-time trend by month

50%75%100%July 2025: 66.7% on time, 5.7% cancelledJul ’25August 2025: 84.5% on time, 0.0% cancelledAug ’25September 2025: 88.2% on time, 0.0% cancelledSep ’25October 2025: 84.3% on time, 0.0% cancelledOct ’25November 2025: 80.3% on time, 3.2% cancelledNov ’25December 2025: 68.3% on time, 1.6% cancelledDec ’25January 2026: 84.6% on time, 3.0% cancelledJan ’26February 2026: 81.0% on time, 3.3% cancelledFeb ’26March 2026: 62.7% on time, 4.8% cancelledMar ’26April 2026: 71.4% on time, 0.0% cancelledApr ’26May 2026: 65.7% on time, 0.0% cancelledMay ’26June 2026: 69.5% on time, 1.7% cancelledJun ’26July 2026: 64.9% on time, 8.1% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft50%
  • Airline (crew, maintenance, cleaning, fueling)29%
  • Air traffic control & airport congestion14%
  • Extreme weather6%
  • Security0%

Other airlines on BWI to DTW

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

777 Southwest Airlines flights tracked on this route; 16 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.