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

🇺🇸 N8892S - Boeing 737MAX 8 - Southwest Airlines SWA1108/WN1108, Chicago Midway (MDW) to Memphis (MEM) - 4.5 mi away @ 37800 ft, heading SSW at 481 mph. Spotted 49x before! [12:12:46 AM CDT] #AC41F3 #N8892S #B38M #SOUTHWEST #SWA1108 #WN1108 #ADSB #ADSBbot