[QUOTE=ernestnywang;32962404]This question is not answerable unless you tell us which flight you want to transfer to.
I want to fly JL007 (Boston to Tokyo) which arrives Tokyo at 16:25, connecting CX521 leaving Tokyo at 17:15 (50 minutes connection), in a single ticket. It seems like CX is now allowing me to book this, though the minimum connection time in Tokyo for same terminal transfer in 45 minutes.