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

🇺🇸 N8940Q - BOEING 737-8 - SOUTHWEST AIRLINES CO SWA4239/WN4239, Chicago Midway (MDW) to Dallas Love Field (DAL) - 4.5 mi away @ 36075 ft, heading SW at 461 mph. Spotted 17x before! [03:24:39 PM CST] #AC5697 #N8940Q #B38M #SWA4239 #WN4239 #ADSB #ADSBbot