With this service, customers with a JAL international award ticket can apply for a change to a higher class of service at the airport of their departure.
This service can be used when a seat is available in the next higher class of service than that of the award ticket.
JAL International Flights
A JMB member who flies on the flights specified above using his or her own miles.
JAL international award tickets issued by Japan Airlines
The required mileage for this service is the same as that for JAL International Upgrade Awards (one way).