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

🇺🇸 N323DU - Airbus A220 300 - Delta Air Lines DAL1156/DL1156, Austin-Bergstrom (AUS) to General Edward Lawrence Logan (BOS) - 8.4 mi away @ 36925 ft, heading ENE at 539 mph. Spotted 10x before! [05:11:49 PM CDT] #A379D3 #N323DU #BCS3 #DELTA #DAL1156 #DL1156 #ADSB #ADSBbot

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

🇺🇸 N307DU - Airbus A220 300 - Delta Air Lines DAL1156/DL1156, Austin-Bergstrom (AUS) to General Edward Lawrence Logan (BOS) - 4.4 mi away @ 37000 ft, heading NE at 570 mph. Spotted 17x before! [04:30:08 PM CDT] #A339B1 #N307DU #BCS3 #DELTA #DAL1156 #DL1156 #ADSB #ADSBbot

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

🇺🇸 N313DU - Airbus A220 300 - Delta Air Lines DAL1156/DL1156, Austin-Bergstrom (AUS) to General Edward Lawrence Logan (BOS) - 4.6 mi away @ 37025 ft, heading ENE at 560 mph. Spotted 22x before! [05:20:19 PM CDT] #A35254 #N313DU #BCS3 #DELTA #DAL1156 #DL1156 #ADSB #ADSBbot