Alaska Airlines just announced a shopping portal bonus where you can earn 500 bonus miles after spending $200 through June 26, 2019. This is in addition to the 1,000 bonus miles you can earn with the United shopping portal bonus.
Alaska Airline miles can be pretty valuable so being able to earn 500 bonus miles for shopping you were going to do anyways is pretty great. It literally takes an extra minute at most to go through the portal and then you will be re-directed to the merchant’s online site to complete your shopping. Enjoy the bonus miles!