Originally Posted by
CPH-Flyer
It is eligible for day of departure upgrade, but you might have to ask at the airport rather than online as your ticket has to be managed via the international side of JAL's homepage.
Thanks
CPH-Flyer. that's good news. Presumably the same applies to online check in, ie we should check in via the international site and generatin mobile boarding pass etc that way (rather than the purely domestic bar code system)?