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

🇺🇸 N854DN - Boeing 737NG 932ER/W - Delta Air Lines DAL2278/DL2278, Raleigh-Durham (RDU) to Harry Reid (LAS) - 3.7 mi away @ 30875 ft, heading W at 504 mph. Spotted 17x before! [07:43:53 AM CST] #ABB68C #N854DN #B739 #DELTA #DAL2278 #DL2278 #ADSB #ADSBbot