Changes of flight date and flight number are permitted subject to the following conditions.
|Before the commencement of travel||After travel has commenced|
|Deadline for reservation changes by phone||Until flight departure (of the old or new itinerary, whichever is earlier)||Until flight departure (of the old or new itinerary, whichever is earlier)|
|Ticket change conditions||Changes are permitted if the new itinerary is within 1 year from the date the award ticket is issued.||Changes are permitted if the new itinerary is within 1 year from the date of commencement of travel.|
Changes to the traveler's name, the airline carrier, the flight sector, the class of service, the routing, reversing the direction of travel, and exchanges to other awards are not permitted.
After an award has been booked, the mileage used for the award can only be reinstated for totally unused awards by paying the refund charge. All reinstated mileage must be returned to the JMB account from which it was redeemed. More information can be found here.