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

🇺🇸 N37462 - Boeing 737NG 924ER/W - United Airlines UAL2135/UA2135 (SEA-IAH-ORD) - 5.4 mi away @ 37350 ft, heading NNE at 542 mph. Spotted 6x before! [04:10:28 PM CDT] #A445EC #N37462 #B739 #UNITED #UAL2135 #UA2135 #ADSB #ADSBbot