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

🇺🇸 N8696E - Boeing 737NG 8H4/W - Southwest Airlines SWA2645/WN2645, Harry Reid (LAS) to Baltimore/Washington Thurgood Marshall (BWI) - 4.2 mi away @ 37025 ft, heading E at 642 mph. Spotted 100x before. [05:09:56 PM CST] #ABF375 #N8696E #B738 #SOUTHWEST #SWA2645 #WN2645 #ADSB #ADSBbot