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

🇺🇸 N8871Q - Boeing 737MAX 8 - Southwest Airlines SWA1786/WN1786 (OAK-SAN-BWI) - 4.6 mi away @ 38425 ft, heading E at 528 mph. Spotted 68x before! [04:15:46 PM CDT] #AC3A60 #N8871Q #B38M #SOUTHWEST #SWA1786 #WN1786 #ADSB #ADSBbot