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

🇺🇸 N207SY - Embraer EMB-175 LR - United Express SKW6967/OO6967 - 3.6 mi away @ 30950 ft, heading NNE at 538 mph. Spotted 30x before! [11:55:24 AM CDT] #A1ADAB #N207SY #E75L #SKYWEST #SKW6967 #OO6967 #autopilot #ADSB #ADSBbot