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

🇺🇸 N313BS - Embraer EMB-175 LR - American Eagle ENY4307/MQ4307 (ORD-VPS-ORD) - 4.2 mi away @ 33875 ft, heading NNE at 447 mph. Spotted 20x before. [01:32:49 PM CST] #A35220 #N313BS #E75L #ENVOY #ENY4307 #MQ4307 #autopilot #ADSB #ADSBbot