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

🇺🇸 N38459 - Boeing 737NG 924ER/W - United Airlines UAL2862/UA2862, Washington Dulles (IAD) to San Francisco (SFO) - 4.4 mi away @ 35050 ft, heading W at 535 mph. Spotted 10x before! [03:10:37 PM CDT] #A46D4F #N38459 #B739 #UNITED #UAL2862 #UA2862 #ADSB #ADSBbot