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

🇺🇸 N87319 - Embraer EMB-175 LR - United Express ASH4013/YV4013, George Bush Intcntl/Houston (IAH) to Detroit Metro Wayne County (DTW) - 4.3 mi away @ 36400 ft, heading NNE at 549 mph. Spotted 18x before! [11:24:03 AM CDT] #AC0418 #N87319 #E75L #AIR_SHUTTLE #ASH4013 #YV4013 #autopilot #ADSB #ADSBbot