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

🇺🇸 N8812Q - Boeing 737MAX 8 - Southwest Airlines SWA3943/WN3943 (STL-LIT-DAL) - 3.4 mi away @ 9625 ft, heading SSW at 314 mph. Spotted 94x before! [02:13:13 PM CDT] #AC2439 #N8812Q #B38M #SOUTHWEST #SWA3943 #WN3943 #TakingOff #ADSB #ADSBbot