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

🇺🇸 N107DU - Airbus A220 100 - Delta Air Lines DAL860/DL860, Laguardia (LGA) to Dallas-Fort Worth (DFW) - 4.6 mi away @ 36550 ft, heading SW at 367 mph. Spotted 16x before! [11:30:17 PM CST] #A01F13 #N107DU #BCS1 #DELTA #DAL860 #DL860 #ADSB #ADSBbot

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

🇺🇸 N140DU - Airbus A220 100 - Delta Air Lines DAL860/DL860, Laguardia (LGA) to Dallas-Fort Worth (DFW) - 4.1 mi away @ 36500 ft, heading WSW at 422 mph. Spotted 18x before! [10:04:31 PM CST] #A0A30E #N140DU #BCS1 #DELTA #DAL860 #DL860 #ADSB #ADSBbot