My 747 history, best as I can remember:
1976: World Airways: MSP -> LGW, LGW -> MSP
1978: Pan Am: DTW -> LHR, IST -> THR, THR -> DEL, DEL -> HKG, HKG -> NRT, NRT -> HNL, HNL -> SEA
1980: Northwest: BOS -> PIK
1980: British Airways: PIK -> JFK
1981: Metro International: JFK -> ATH, ATH -> JFK...