Southwest Airlines WN4543 Landed MDW Chicago → DTW Detroit 47m 366km / 225mi 01. Jul 2018 DEPARTURE 15:02 CDT 20:02 UTC 14:50 +12 minutes ARRIVAL 16:50 EDT 20:50 UTC 16:55 -4 minutes Boeing B737-700 N477WN AIRLINE Southwest Airlines WN / SWA FLIGHTS/WEEK 41 PUNCTUALITY 68%