AAvacations.com now has a feature that shows the price of your vacation in AAdvantage miles and dollars while you search the site so that you can pay online with miles and a credit card. If your AmericanAirlines Vacations package includes air, you may only use AAdvantage miles to pay for the land portion of your booking (hotels, transfers, tours, activities and rental cars). If you wish to redeem AAdvantage miles for the air portion of your package, or if you want to redeem miles for an air award only, you may do so online at AA.com.