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

🇺🇸 N37506 - Boeing 737MAX 9 - United Airlines UAL1097/UA1097 (MCO-ORD-DCA) - 5.1 mi away @ 33975 ft, heading NNE at 543 mph. Spotted 4x before. [08:41:03 AM CST] #A448D5 #N37506 #B39M #UNITED #UAL1097 #UA1097 #ADSB #ADSBbot