Visit the Alaska Airlines buy points website and log in to your account. Select the "Buy" option.
To purchase miles, follow these steps provided by WalletHub : alaska air miles buy
Non-elite members can buy or receive up to 150,000 miles per calendar year . Visit the Alaska Airlines buy points website and
Members with Atmos Silver, Gold, Platinum, or Titanium status have no annual purchase limit . Key Rules and Restrictions alaska air miles buy
You must have been a member for at least 10 days before you are eligible to buy miles.