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

🇺🇸 N259WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3336/WN3336 (RSW-BWI-MCI) - 3.8 mi away @ 29250 ft, heading WNW at 516 mph. Spotted 82x before! [03:20:00 PM CDT] #A27AEE #N259WN #B737 #SOUTHWEST #SWA3336 #WN3336 #ADSB #ADSBbot