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

🇺🇸 N669DN - Boeing 757 232/W - Delta Air Lines DAL607/DL607, John F Kennedy (JFK) to Harry Reid (LAS) - 4.6 mi away @ 40025 ft, heading W at 503 mph. Spotted once before! [08:47:44 AM CDT] #A8D600 #N669DN #B752 #DELTA #DAL607 #DL607 #ADSB #ADSBbot