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

🇺🇸 N81449 - Boeing 737NG 924ER/W - United Airlines UAL2268/UA2268 (PHX-IAD-MCO) - 3.9 mi away @ 35075 ft, heading E at 667 mph. Spotted 12x before! [12:57:10 PM CST] #AB1B3E #N81449 #B739 #UNITED #UAL2268 #UA2268 #ADSB #ADSBbot