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

🇺🇸 N572DT - Airbus A321 271NXSL - Delta Air Lines DAL696/DL696, Salt Lake City (SLC) to General Edward Lawrence Logan (BOS) - 4.4 mi away @ 37050 ft, heading ENE at 553 mph. Spotted 2x before! [03:32:20 AM CDT] #A75634 #N572DT #A21N #DELTA #DAL696 #DL696 #ADSB #ADSBbot