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

🇺🇸 N870DC - Bombardier CRJ 700 702ER NG - American Eagle SKW6471/OO6471 (ORD-STL-ORD) - 3.2 mi away @ 9000 ft, heading E at 346 mph. Spotted 20x before! [08:06:24 AM CDT] #ABF6A4 #N870DC #CRJ7 #SKYWEST #SKW6471 #OO6471 #Landing #ADSB #ADSBbot