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

🇺🇸 N63890 - Boeing 737NG 924ER/W - United Airlines UAL618/UA618, Baltimore/Washington Thurgood Marshall (BWI) to Los Angeles (LAX) - 4.5 mi away @ 35725 ft, heading W at 497 mph. Spotted 14x before! [07:09:07 AM CDT] #A85F20 #N63890 #B739 #UNITED #UAL618 #UA618 #ADSB #ADSBbot