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

🇺🇸 N8685B - Boeing 737NG 8H4/W - Southwest Airlines SWA3588/WN3588, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 3.4 mi away @ 7275 ft, heading SW at 323 mph. Spotted 96x before. [06:39:34 PM CDT] #ABEF98 #N8685B #B738 #SOUTHWEST #SWA3588 #WN3588 #TakingOff #Departure #ADSB #ADSBbot