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

🇺🇸 N726YX - Embraer EMB-175 LR - United Express RPA3460/YX3460, Louis Armstrong New Orleans (MSY) to Chicago O'Hare (ORD) - 4.0 mi away @ 33450 ft, heading NNE at 500 mph. Spotted 4x before. [06:44:18 PM CST] #A9BC12 #N726YX #E75L #BRICKYARD #RPA3460 #YX3460 #autopilot #ADSB #ADSBbot