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

🇺🇸 N8629A - Boeing 737NG 8H4/W - Southwest Airlines SWA3977/WN3977, St Louis Lambert (STL) to Sacramento (SMF) - 3.5 mi away @ 14375 ft, heading WNW at 440 mph. Spotted 83x before! [05:06:19 PM CDT] #ABD9D9 #N8629A #B738 #SOUTHWEST #SWA3977 #WN3977 #TakingOff #Departure #ADSB #ADSBbot