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

🇺🇸 N477WN - Boeing 737NG 7H4/W - Southwest Airlines SWA4589/WN4589 (STL-AUS-MAF) - 3.3 mi away @ 5925 ft, heading SW at 306 mph. Spotted 87x before. [08:41:26 AM CDT] #A5DD1C #N477WN #B737 #SOUTHWEST #SWA4589 #WN4589 #Landing #ADSB #ADSBbot