🇺🇸 N557NW - Boeing 757 251/W - Delta Air Lines DAL497/DL497, General Edward Lawrence Logan (BOS) to Harry Reid (LAS) - 7.3 mi away @ 40175 ft, heading WSW at 551 mph. Spotted for first time! [09:33:46 AM CDT] #A71AAD #N557NW #B752 #DELTA #DAL497 #DL497 #ADSB #ADSBbot