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

🇺🇸 N8938Q - Boeing 737MAX 8 - Southwest Airlines SWA4534/WN4534, San Diego (SAN) to St Louis Lambert (STL) - 3.3 mi away @ 8075 ft, heading E at 370 mph. Spotted 21x before. [06:24:58 PM CDT] #AC53F8 #N8938Q #B38M #SOUTHWEST #SWA4534 #WN4534 #Landing #Arrival #ADSB #ADSBbot