Southwest Airlines DTW to MDW on-time performance
Southwest Airlines nonstop flights from Detroit to Chicago · Aug 2025 – Jul 2026
On-time arrivals
74%
arrived < 15 min late
Cancelled
1.3%
14 flights
Avg arrival delay
15 min
51 min when late
Rank on route
#2 of 2
route average 76% on time
Key facts
- Southwest Airlines flights on DTW to MDW arrived on time 74% of the time in Aug 2025 – Jul 2026.
- 1.3% were cancelled, and 5% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 76% on time overall.
- The largest source of delay minutes was late-arriving aircraft (40%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft40%
- Air traffic control & airport congestion32%
- Airline (crew, maintenance, cleaning, fueling)27%
- Extreme weather1%
- Security0%
Other airlines on DTW to MDW
- SkyWest Airlines82% on time · 12 min avg delay
Full DTW to MDW comparison →
Southwest Airlines on-time record across all routes →
1,052 Southwest Airlines flights tracked on this route; 14 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.