Originally Posted by rkkwan
This flight always use one of the Polar routes, which don't have much headwind or tailwind. Based on the experience of EWR-HKG, which uses the same route, it should be very consistent. Perhaps between 13:00 and 13:15.
Well taking my EWR-PEK flight as an example there were strong head / tail winds at various points in the flight (>80mph for long periods of time). Not sure if this is typical or not but they did exist...