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

🇺🇸 N35407 - Boeing 737NG 924/W - United Airlines UAL8273/UA8273 (CLE-ORD-SNA) - 3.3 mi away @ 8700 ft, heading E at 338 mph. Spotted 10x before! [09:55:26 PM CDT] #A3F621 #N35407 #B739 #UNITED #UAL8273 #UA8273 #Landing #ADSB #ADSBbot