Looking at booking an F award booking (using UA miles) from BKK-NRT/HND in early November. Currently the flights are on different versions of the 747 (the overnight flight has the updated version at least on seatguru)
But I've heard TG frequently changes the plane, is it possible the plane on this route gets changed to one that doesn't have F? I've heard of many folks getting bumped down to J from F and having to fight to get back on F when it changes to a plane with F again. Thanks.