🇺🇸 N8866H - Boeing 737MAX 8 - Southwest Airlines SWA4315/WN4315, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 4.0 mi away @ 11800 ft, heading WNW at 414 mph. Spotted 110x before. [04:45:53 PM CDT] #AC3751 #N8866H #B38M #SOUTHWEST #SWA4315 #WN4315 #Landing #Departure #ADSB #ADSBbot