🇺🇸 N256NN - Embraer EMB-175 LR - American Eagle ENY3749/MQ3749, Chicago O'Hare (ORD) to Austin-Bergstrom (AUS) - 4.3 mi away @ 34975 ft, heading SW at 473 mph. Spotted 18x before! [09:24:39 AM CDT] #A26F01#N256NN#E75L#ENVOY#ENY3749#MQ3749#autopilot#STL#ADSB