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

🇺🇸 N910WN - Boeing 737NG 7H4/W - Southwest Airlines SWA1416/WN1416, Phoenix Sky Harbor (PHX) to Chicago Midway (MDW) - 4.3 mi away @ 38950 ft, heading ENE at 503 mph. Spotted 66x before! [11:12:56 AM CDT] #AC98AC #N910WN #B737 #SOUTHWEST #SWA1416 #WN1416 #ADSB #ADSBbot