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

🇺🇸 N912WN - Boeing 737NG 7H4/W - Southwest Airlines SWA311/WN311 (MKE-DAL-ECP) - 5.2 mi away @ 41825 ft, heading SW at 474 mph. Spotted 57x before! [07:21:13 AM CDT] #ACA01A #N912WN #B737 #SOUTHWEST #SWA311 #WN311 #ADSB #ADSBbot