Transferring AAdvantage miles between accounts is a notoriously expensive proposition and is generally considered a poor use of value. As of 2026, American Airlines charges a transaction fee of $15 plus a transfer cost of $0.0125 per mile. For example, if you wanted to transfer 10,000 miles to a family member, it would cost you $125 plus the $15 fee, totaling $140. There is usually a minimum transfer amount (often 1,000 miles) and a maximum cap per year (usually around 200,000 miles). Because you can often buy miles for a similar or slightly higher price during promotions, "transferring" often makes little financial sense unless someone is just a few thousand miles short of a specific "Dream Award" ticket. A much better "pro-tip" is to simply book the flight for the other person using your own miles. American Airlines allows you to use your miles to book a ticket in anyone's name at no extra charge, completely bypassing the transfer fees. This way, the miles stay in your account until the moment of booking, and you don't lose money to the airline's administrative fees.