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

🇺🇸 N7742B - Boeing 737NG 7BD/W - Southwest Airlines SWA4682/WN4682, St Louis Lambert (STL) to Nashville (BNA) - 3.5 mi away @ 13475 ft, heading SSW at 340 mph. Spotted 57x before. [07:30:29 PM CST] #AA7A83 #N7742B #B737 #SOUTHWEST #SWA4682 #WN4682 #TakingOff #Departure #ADSB #ADSBbot