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

🇺🇸 N8301J - Boeing 737NG 8H4/W - Southwest Airlines SWA4513/WN4513, Denver (DEN) to Baltimore/Washington Thurgood Marshall (BWI) - 4.6 mi away @ 39150 ft, heading E at 525 mph. Spotted 76x before! [07:37:05 AM CDT] #AB5ADE #N8301J #B738 #SOUTHWEST #SWA4513 #WN4513 #ADSB #ADSBbot