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

🇺🇸 N492UA - Airbus A320 232 - United Airlines UAL8121/UA8121, San Francisco (SFO) to St Louis Lambert (STL) - 3.2 mi away @ 10400 ft, heading E at 358 mph. Spotted 33x before! [04:34:25 PM CDT] #A61949 #N492UA #A320 #UNITED #UAL8121 #UA8121 #Landing #Arrival #ADSB #ADSBbot