Earn bonus miles for every friend or family member who is approved for a new Bank of America Alaska Airlines Visa credit card. For every person you refer and who applies and is approved for a new card, you will get 2,500 miles — up to 25,000 bonus miles if 10 friends or family members become cardholders. Alaska’s Web site states that this is a limited-time offer but does not state when the promotion will end. If your friend applies and receives an Alaska Airlines Visa Signature card, he or she will get a 20,000-mile enrollment bonus.