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

🇺🇸 N426UA - Airbus A320 232 - United Airlines UAL1029/UA1029 - 3.6 mi away @ 15500 ft, heading WNW at 440 mph. Spotted 29x before! [09:14:56 AM CDT] #A513AC #N426UA #A320 #UNITED #UAL1029 #UA1029 #ADSB #ADSBbot