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

🇺🇸 N8872Q - Boeing 737MAX 8 - Southwest Airlines SWA3144/WN3144, Indianapolis (IND) to Phoenix Sky Harbor (PHX) - 4.3 mi away @ 35675 ft, heading WSW at 476 mph. Spotted 61x before! [08:18:02 PM CDT] #AC3A83 #N8872Q #B38M #SOUTHWEST #SWA3144 #WN3144 #ADSB #ADSBbot