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

🇺🇸 N617UX - Embraer EMB-175 LL - United Express SK4747, Chicago O'Hare (ORD) to Northwest Arkansas Ntl (XNA) - 3.5 mi away @ 29200 ft, heading SW at 383 mph. Spotted 17x before! [10:09:25 AM CDT] #A80A97 #N617UX #E75L #SKYWEST #SK4747 #autopilot #ADSB #ADSBbot