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

🇺🇸 N891UA - Airbus A319 132 - United Airlines UAL387/UA387, Austin-Bergstrom (AUS) to Washington Dulles (IAD) - 3.6 mi away @ 29550 ft, heading NE at 571 mph. Spotted 29x before! [12:17:35 PM CDT] #AC4ACE #N891UA #A319 #UNITED #UAL387 #UA387 #ADSB #ADSBbot

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

🇺🇸 N892UA - Airbus A319 132 - United Airlines UAL387/UA387, Austin-Bergstrom (AUS) to Washington Dulles (IAD) - 4.5 mi away @ 37950 ft, heading NE at 591 mph. Spotted 30x before! [12:08:45 PM CDT] #AC4E85 #N892UA #A319 #UNITED #UAL387 #UA387 #ADSB #ADSBbot