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

🇺🇸 N117DU - Airbus A220 100 - Delta Air Lines DAL669/DL669, Dallas-Fort Worth (DFW) to Laguardia (LGA) - 4.7 mi away @ 37475 ft, heading ENE at 581 mph. Spotted 17x before! [06:48:21 PM CST] #A04692 #N117DU #BCS1 #DELTA #DAL669 #DL669 #ADSB #ADSBbot