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

🇺🇸 N491WN - Boeing 737NG 7H4/W - Southwest Airlines SWA1572/WN1572, Seattle-Tacoma (SEA) to St Louis Lambert (STL) - 3.4 mi away @ 8475 ft, heading E at 320 mph. Spotted 66x before! [05:55:50 PM CDT] #A615D0 #N491WN #B737 #SOUTHWEST #SWA1572 #WN1572 #Landing #Arrival #ADSB #ADSBbot