To claim a free flight with Hawaiian Airlines you need to have quite a bit of miles accumulated on your account! The total amount depends on the flight distance, but minimum amounts range from 7.500 meals and up. You can begin collecting miles by signing up for a new account on the Hawaiian Airlines website or app and submitting your personal information. Any flight you take will begin accumulating miles. Another option you have is to complete the minimum spend amount to unlock the bonus miles from the Hawaiian Airlines + MasterCard promotion that's active right now.