🇺🇸 N8544Z - Boeing 737NG 800/W - Southwest Airlines SWA1291/WN1291, St Louis Lambert (STL) to Harry Reid (LAS) - 3.7 mi away @ 12350 ft, heading WNW at 428 mph. Spotted 107x before. [06:01:01 PM CDT] #ABB930 #N8544Z #B738 #SOUTHWEST #SWA1291 #WN1291 #TakingOff #Departure #ADSB #ADSBbot