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

🇺🇸 N8869L - Boeing 737MAX 8 - Southwest Airlines SWA725/WN725, St Louis Lambert (STL) to Harry Reid (LAS) - 3.3 mi away @ 13375 ft, heading WNW at 379 mph. Spotted 67x before! [07:21:31 AM CDT] #AC37BD #N8869L #B38M #SOUTHWEST #SWA725 #WN725 #TakingOff #Departure #ADSB #ADSBbot