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

🇺🇸 N956WN - Boeing 737NG 7H4/W - Southwest Airlines SWA1061/WN1061, Phoenix Sky Harbor (PHX) to Baltimore/Washington Thurgood Marshall (BWI) - 6.7 mi away @ 41250 ft, heading E at 559 mph. Spotted 90x before! [09:42:27 AM CDT] #AD4CF2 #N956WN #B737 #SOUTHWEST #SWA1061 #WN1061 #ADSB #ADSBbot