What are American Airlines miles worth? Here’s your quick answer Meghan Hunter Insider Secret You can earn American Airlines miles without spending a dime. Bask Bank offers a savings account that accrues American Airlines miles instead of interest — one mile for every dollar you have in your account, annually. If you know the best ways to use AA miles, this can be worth exponentially more than the highest APY offered by any bank. Whenever I tell friends, “Trust me, you should be collecting American Airlines miles,” they always demand to know: What are they worth? Why should I bother collecting miles when there are no annual fee credit cards that earn 2% cash back?