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

🇺🇸 N8623F - Boeing 737NG 8H4/W - Southwest Airlines SWA4946/WN4946, Phoenix Sky Harbor (PHX) to St Louis Lambert (STL) - 3.4 mi away @ 7725 ft, heading E at 321 mph. Spotted 90x before! [04:21:10 PM CST] #ABD90C #N8623F #B738 #SOUTHWEST #SWA4946 #WN4946 #Landing #Arrival #ADSB #ADSBbot