🇺🇸 N955WN - Boeing 737NG 7H4/W - Southwest Airlines SWA4499/WN4499, Louisville Muhammad Ali (SDF) to Denver (DEN) - 13.2 mi away @ 39475 ft, heading WNW at 526 mph. Spotted 93x before. [01:16:44 PM CDT] #AD493B #N955WN #B737 #SOUTHWEST #SWA4499 #WN4499 #ADSB #ADSBbot