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

🇺🇸 N143DU - Airbus A220 100 - Delta Air Lines DAL2315/DL2315, General Edward Lawrence Logan (BOS) to Dallas-Fort Worth (DFW) - 4.1 mi away @ 36400 ft, heading SW at 394 mph. Spotted 12x before! [05:45:18 PM CDT] #A0AE33 #N143DU #BCS1 #DELTA #DAL2315 #DL2315 #ADSB #ADSBbot