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

🇺🇸 N27273 - Boeing 737MAX 8 - United Airlines UAL1113/UA1113 (BNA-ORD-IAD) - 4.8 mi away @ 35525 ft, heading N at 500 mph. Spotted 5x before! [08:43:47 AM CDT] #A2B153 #N27273 #B38M #UNITED #UAL1113 #UA1113 #ADSB #ADSBbot