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

🇺🇸 N8989L - SOUTHWEST AIRLINES CO SWA670/WN670, Denver (DEN) to St Louis Lambert (STL) - 3.4 mi away @ 8300 ft, heading ESE at 368 mph. Spotted once before. [09:39:12 PM CDT] #AC66AA #N8989L #B38M #SWA670 #WN670 #Landing #Arrival #ADSB #ADSBbot