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

🇺🇸 N899UA - Airbus A319 132 - United Airlines UAL2739/UA2739 (DTW-IAH-SAN) - 4.8 mi away @ 38825 ft, heading SW at 435 mph. Spotted 23x before! [08:35:05 AM CDT] #AC6886 #N899UA #A319 #UNITED #UAL2739 #UA2739 #ADSB #ADSBbot