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

🇺🇸 N277WN - Boeing 737NG 7H4/W - Southwest Airlines SWA1309/WN1309, Raleigh-Durham (RDU) to St Louis Lambert (STL) - 3.6 mi away @ 3425 ft, heading WNW at 272 mph. Spotted 75x before. [08:59:24 AM CST] #A2C27E #N277WN #B737 #SOUTHWEST #SWA1309 #WN1309 #Landing #Arrival #ADSB #ADSBbot