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

🇺🇸 N186DN - Boeing 767 332ER/W - Delta Air Lines DAL416/DL416 (ATL-ANC-ATL) - 4.5 mi away @ 38000 ft, heading WNW at 494 mph. Spotted once before! [04:20:33 PM CDT] #A1574E #N186DN #B763 #DELTA #DAL416 #DL416 #ADSB #ADSBbot