I would do it if I could afford to Turn Left! The longest I have known was an HKG (Kai Tak!) to LHR in a VS 346 in (I think) 1995. We had to avoid some storms and it was 15 hours and some - in Y. It was a trial. As it was the last evening before Lunar New Year, the flight was 100%.
Last edited by PAXboy; 24th Aug 2019 at 14:13.