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

🇺🇸 N78524 - Boeing 737NG 824/W - United Airlines UAL8240/UA8240 (LAS-LAX-IAD-BNA) - 4.7 mi away @ 32500 ft, heading NE at 576 mph. Spotted 12x before! [06:49:31 PM CDT] #AAA5D4 #N78524 #B738 #UNITED #UAL8240 #UA8240 #ADSB #ADSBbot