* Through Alaska Airlines. You can apply for the Alaska Airlines Mileage Plan directly through the airline's website. To do so, you'll need to create an account and then provide some basic information about yourself, including your name, address, and email address. You can also choose to add a credit card to your account, which will allow you to earn miles on everyday purchases.
* Through a credit card company. Many credit card companies offer mileage plans that can be used on Alaska Airlines. To apply for a credit card with a mileage plan, you'll need to contact the credit card company directly. You'll need to provide some basic information about yourself, including your name, address, and income, as well as a copy of your driver's license and Social Security number.
* Through a travel website. Some travel websites offer mileage plans that can be used on Alaska Airlines. To apply for a mileage plan through a travel website, you'll need to create an account and then provide some basic information about yourself, including your name, address, and email address. You may also need to provide a copy of your driver's license and Social Security number.
Once you've applied for a mileage plan, you'll be able to start earning miles by flying with Alaska Airlines or by using your credit card. You can then use your miles to redeem for flights, hotels, car rentals, and other travel-related expenses.