🇺🇸 N8804L - Boeing 737MAX 8 - Southwest Airlines SWA344/WN344, Baltimore/Washington Thurgood Marshall (BWI) to Phoenix Sky Harbor (PHX) - 5.3 mi away @ 37950 ft, heading W at 506 mph. Spotted 105x before. [04:01:11 PM CDT] #AC20C4 #N8804L #B38M #SOUTHWEST #SWA344 #WN344 #ADSB #ADSBbot