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

🇺🇸 N569AM - BOEING 737 MAX 9 - UMB BANK NA TRUSTEE AMX687/AM687, Chicago O'Hare (ORD) to Licenciado Benito Juarez (MEX) - 4.0 mi away @ 34375 ft, heading SW at 379 mph. Spotted for first time! [04:01:54 PM CST] #A74865 #N569AM #B39M #AMX687 #AM687 #ADSB #ADSBbot