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

🇺🇸 N33286 - Boeing 737NG 824/W - United Airlines UAL8108/UA8108, Newark Liberty (EWR) to Chicago O'Hare (ORD) - 4.7 mi away @ 39375 ft, heading E at 552 mph. Spotted 16x before! [03:25:13 AM CDT] #A3A0CC #N33286 #B738 #UNITED #UAL8108 #UA8108 #ADSB #ADSBbot