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

🇺🇸 N37563 - Boeing 737MAX 9 - United Airlines UAL275/UA275, Newark Liberty (EWR) to Harry Reid (LAS) - 4.1 mi away @ 35100 ft, heading W at 478 mph. Spotted 5x before! [09:01:38 PM CDT] #A449A4 #N37563 #B39M #UNITED #UAL275 #UA275 #ADSB #ADSBbot