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

🇺🇸 N318DU - Airbus A220 300 - Delta Air Lines DAL2305/DL2305, General Edward Lawrence Logan (BOS) to Dallas-Fort Worth (DFW) - 12.3 mi away @ 38325 ft, heading SW at 504 mph. Spotted 11x before! [09:21:36 PM CDT] #A364E7 #N318DU #BCS3 #DELTA #DAL2305 #DL2305 #ADSB #ADSBbot