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

🇺🇸 N939WN - Boeing 737NG 7H4/W - Southwest Airlines SWA3545/WN3545 - 3.5 mi away @ 8825 ft, heading S at 329 mph. Spotted 63x before! [09:11:12 PM CDT] #AD0919 #N939WN #B737 #SOUTHWEST #SWA3545 #WN3545 #TakingOff #ADSB #ADSBbot