know about jetstreams but its 3 hours not 2 as I thought?, Virgin timetable it at 55 minutes.
Various Airlines schedule various sectors in an individual way (and pad them to keep punctuality levels high). Plus VS operate 747's that cruise at around Mach .86, where as the Maxjet 767-200's plod along at about Mach .79..which equates to around 20 minutes extra on a 4000nm sector
