Originally Posted by
BasilBush
I think TheFrankFlyer’s post was referring to my question about why JL and NH adopt more northerly routings than BA, when flying on the eastbound routing (ie before the current eruption). BA definitely take consistently longer to fly HND-LHR, and different Etops rules would seem to be a logical reason.
I believe
Waterhorse is a (BA) pilot. I'd go with his/her explanation.