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

🇺🇸 N539US - Boeing 757 251/W - Delta Air Lines DAL444/DL444, Hartsfield - Jackson Atlanta (ATL) to Seattle-Tacoma (SEA) - 4.2 mi away @ 34175 ft, heading NW at 454 mph. Spotted once before! [08:56:18 AM CST] #A6D3AF #N539US #B752 #DELTA #DAL444 #DL444 #ADSB #ADSBbot