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

🇺🇸 N900WN - Boeing 737NG 7H4/W - Southwest Airlines SWA4930/WN4930 (HOU-SAT-STL) - 21.0 mi away @ 3675 ft, heading ESE at 315 mph. Spotted 54x before! [03:56:29 PM CST] #AC712D #N900WN #B737 #SOUTHWEST #SWA4930 #WN4930 #Landing #ADSB #ADSBbot