🇺🇸 N8977G - BOEING 737 MAX 8 - Southwest Airlines SWA3384/WN3384, Denver (DEN) to Louisville Muhammad Ali (SDF) - 4.9 mi away @ 38800 ft, heading ESE at 549 mph. Spotted 38x before. [02:09:24 PM CDT] #AC62A9 #N8977G #B38M #SOUTHWEST #SWA3384 #WN3384 #ADSB #ADSBbot