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

🇺🇸 N8852Q - Boeing 737MAX 8 - Southwest Airlines SWA3637/WN3637, Los Cabos (SJD) to Chicago Midway (MDW) - 4.5 mi away @ 36975 ft, heading NNE at 594 mph. Spotted 70x before! [06:00:49 PM CDT] #AC3315 #N8852Q #B38M #SOUTHWEST #SWA3637 #WN3637 #ADSB #ADSBbot