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

🇺🇸 N8502Z - Boeing 737NG 800/W - Southwest Airlines SWA1289/WN1289, Baltimore/Washington Thurgood Marshall (BWI) to Dallas Love Field (DAL) - 4.2 mi away @ 36300 ft, heading SW at 397 mph. Spotted 65x before! [09:46:53 AM CST] #ABAA0E #N8502Z #B738 #SOUTHWEST #SWA1289 #WN1289 #ADSB #ADSBbot