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

🇺🇸 N137DU - Airbus A220 100 - Delta Air Lines DAL2781/DL2781, Dallas-Fort Worth (DFW) to Laguardia (LGA) - 5.3 mi away @ 38000 ft, heading NE at 599 mph. Spotted 27x before! [09:13:18 PM CDT] #A09590 #N137DU #BCS1 #DELTA #DAL2781 #DL2781 #ADSB #ADSBbot