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

🇺🇸 N7702A - Boeing 737NG 7BD/W - Southwest Airlines SWA1475/WN1475 (BNA-SLC-OAK) - 4.5 mi away @ 38050 ft, heading WNW at 550 mph. Spotted 74x before! [04:18:26 PM CDT] #AA6BA6 #N7702A #B737 #SOUTHWEST #SWA1475 #WN1475 #ADSB #ADSBbot