🇺🇸 N8758L - Boeing 737MAX 8 - Southwest Airlines SWA1439/WN1439, St Louis Lambert (STL) to Phoenix Sky Harbor (PHX) - 4.0 mi away @ 11350 ft, heading WNW at 395 mph. Spotted 75x before. [07:43:37 AM CDT] #AC0C64 #N8758L #B38M #SOUTHWEST #SWA1439 #WN1439 #TakingOff #Departure #ADSB #ADSBbot