Just type in your HawaiianMiles account number at the time of purchase on the Comments Line at checkout (very bottom of second checkout screen). We will do the rest. You don't need to have an Hawaiian Airlines credit card, only a HawaiianMiles account number to accumulate points. You can use any credit card that we accept, including the Hawaiian Airlines credit card, or PayPal as payment. If you have any questions regarding the HawaiianMiles program, please click on the link below. The price of shipping is not included as part of the $50 minimum. We are happy to bring HawaiianMiles to our store to provide more services and promotions to our valued customers. Mahalo! One more thing - Keep in mind that you can order from us to avoid losing HawaiianMiles points if you are nearing the 18 month expiration inactivity rule.