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

🇺🇸 N820UA - Airbus A319 131 - United Airlines UAL1004/UA1004, St Louis Lambert (STL) to Denver (DEN) - 3.4 mi away @ 15100 ft, heading WNW at 384 mph. Spotted 28x before! [05:45:05 PM CDT] #AB329E #N820UA #A319 #UNITED #UAL1004 #UA1004 #Departure #ADSB #ADSBbot

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

🇺🇸 N472UA - Airbus A320 232 - United Airlines UAL1004/UA1004, St Louis Lambert (STL) to Denver (DEN) - 4.7 mi away @ 15350 ft, heading WNW at 367 mph. Spotted 25x before! [04:53:55 PM CST] #A5CA4B #N472UA #A320 #UNITED #UAL1004 #UA1004 #Departure #ADSB #ADSBbot

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

🇺🇸 N494UA - Airbus A320 232 - United Airlines UAL1004/UA1004, St Louis Lambert (STL) to Denver (DEN) - 3.5 mi away @ 15100 ft, heading WNW at 367 mph. Spotted 30x before! [05:05:38 PM CST] #A620B7 #N494UA #A320 #UNITED #UAL1004 #UA1004 #Departure #ADSB #ADSBbot