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

🇺🇸 N8315C - Boeing 737NG 8H4/W - Southwest Airlines SWA3326/WN3326 (RDU-LAS-SMF) - 3.8 mi away @ 33950 ft, heading WNW at 440 mph. Spotted 62x before! [02:09:55 PM CST] #AB5F1B #N8315C #B738 #SOUTHWEST #SWA3326 #WN3326 #ADSB #ADSBbot