Emirates Skywards: Earning Miles and Miles Accelerator
Can I decide what frequent flyer number I want to earn Miles on after I have checked in or traveled?
No. You must decide which program you wish to earn Miles on at the time of reservation or check-in for Qualifying Flights and at the time of paying for other qualifying goods or services. No changes can be made to the membership number once a member has checked in for the first flight of an itinerary.