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

🇺🇸 N231WN - Boeing 737NG 7H4/W - Southwest Airlines SWA1773/WN1773 (BUR-LAS-CMH) - 4.6 mi away @ 37025 ft, heading E at 587 mph. Spotted 48x before! [02:37:55 PM CST] #A20E38 #N231WN #B737 #SOUTHWEST #SWA1773 #WN1773 #ADSB #ADSBbot