Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N277NN - Embraer EMB-175 LR - American Eagle ENY3607/MQ3607, Chicago O'Hare (ORD) to San Antonio (SAT) - 3.9 mi away @ 34225 ft, heading SW at 464 mph. Spotted 32x before. [10:42:27 AM CDT] #A2C1B6 #N277NN #E75L #ENVOY #ENY3607 #MQ3607 #autopilot #ADSB #ADSBbot