What will be the expiration policy of my WorldPerks miles once they are transferred to my SkyMiles account?
The mileage deposit of your WorldPerks miles into your new SkyMiles account was considered qualifying activity and extended your mileage expiration date for 24 months. Moving forward, as long as you have any qualifying earning or redemption activity in your SkyMiles account within a 24-month period, your miles will never expire.