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

🇺🇸 N17310 - Boeing 737MAX 8 - United Airlines UAL2432/UA2432 (EWR-LAS-SFO-SEA) - 4.4 mi away @ 38275 ft, heading WSW at 527 mph. Spotted 9x before! [07:15:36 AM CDT] #A126E6 #N17310 #B38M #UNITED #UAL2432 #UA2432 #ADSB #ADSBbot