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

🇺🇸 N895DN - Boeing 737NG 900ER/W - Delta Air Lines DAL1456/DL1456 (ATL-ORD-ATL) - 4.8 mi away @ 38125 ft, heading NNE at 549 mph. Spotted 21x before! [11:19:33 AM CDT] #AC583F #N895DN #B739 #DELTA #DAL1456 #DL1456 #ADSB #ADSBbot