Normally, I wouldn't ask because I usually catch the aircraft registrations when I fly, but this time I didn't. If someone would be so kind as to tell me the reg numbers for the following flights, I'd greatly appreciate it. Thanks!
NWA427, MCO-DTW, Boeing 757-200
NWA1554, DTW-SYR, DC-9
NWA1559, SYR-DTW, DC-9
NWA428, DTW-MCO, Boeing 757-300