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

🇺🇸 N7868K - Boeing 737NG 79P/W - Southwest Airlines SWA2570/WN2570, Phoenix Sky Harbor (PHX) to Tulsa (TUL) - 4.7 mi away @ 39200 ft, heading SW at 426 mph. Spotted 63x before! [10:13:51 PM CDT] #AAAA4A #N7868K #B737 #SOUTHWEST #SWA2570 #WN2570 #ADSB #ADSBbot