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

🇺🇸 N878AS - Bombardier CRJ 200ER - Delta Connection SKW5298/OO5298, Chicago O'Hare (ORD) to Springfield-Branson Ntl (SGF) - 3.6 mi away @ 31625 ft, heading SW at 474 mph. Spotted once before! [01:32:22 PM CST] #AC141F #N878AS #CRJ2 #SKYWEST #SKW5298 #OO5298 #ADSB #ADSBbot