Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N436WN - Boeing 737NG 7H4/W - Southwest Airlines SWA4885/WN4885, William P Hobby (HOU) to Chicago Midway (MDW) - 5.2 mi away @ 36775 ft, heading NNE at 578 mph. Spotted 78x before! [10:26:22 AM CST] #A53B69 #N436WN #B737 #SOUTHWEST #SWA4885 #WN4885 #ADSB #ADSBbot