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

🇺🇸 N472WN - Boeing 737NG 7H4/W - Southwest Airlines SWA4313/WN4313, St Louis Lambert (STL) to Kansas City (MCI) - 3.4 mi away @ 16950 ft, heading NW at 407 mph. Spotted 70x before. [08:39:20 AM CDT] #A5CA89 #N472WN #B737 #SOUTHWEST #SWA4313 #WN4313 #Departure #ADSB #ADSBbot