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

🇺🇸 N14529 - AIRBUS A321neo - UNITED AIRLINES INC UAL2000/UA2000, Orlando (MCO) to Chicago O'Hare (ORD) - 4.2 mi away @ 35000 ft, heading NNE at 528 mph. Spotted 3x before. [08:01:50 PM CST] #A0B803 #N14529 #A21N #UAL2000 #UA2000 #ADSB #ADSBbot