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

🇺🇸 N948DZ - Boeing 737NG 9GPER/W - Delta Air Lines DAL2489/DL2489 (ATL-MCI-ATL) - 3.7 mi away @ 30400 ft, heading WNW at 509 mph. Spotted 46x before! [11:51:56 AM CDT] #AD2B43 #N948DZ #B739 #DELTA #DAL2489 #DL2489 #ADSB #ADSBbot