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

🇺🇸 N24526 - Airbus A321 271NXSL - United Airlines UAL798/UA798, Denver (DEN) to Washington Dulles (IAD) - 4.4 mi away @ 37050 ft, heading ESE at 551 mph. Spotted 2x before! [06:48:15 PM CDT] #A2454F #N24526 #A21N #UNITED #UAL798 #UA798 #ADSB #ADSBbot

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

🇺🇸 N14529 - AIRBUS A321neo - UNITED AIRLINES INC UAL798/UA798, Denver (DEN) to Washington Dulles (IAD) - 4.2 mi away @ 34825 ft, heading E at 570 mph. Spotted once before! [06:49:37 PM CDT] #A0B803 #N14529 #A21N #UAL798 #UA798 #ADSB #ADSBbot