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

🇺🇸 N540EG - Bombardier CRJ 700 702ER NG - American Eagle JIA5056/OH5056 (DFW-SBN-DFW) - 4.2 mi away @ 36250 ft, heading SW at 482 mph. Spotted once before. [12:22:40 PM CDT] #A6D857 #N540EG #CRJ7 #BLUE_STREAK #JIA5056 #OH5056 #ADSB #ADSBbot