1. Log into the AAdvantage account you wish to keep.
You need to be logged into the AAdvantage account you wish to keep, but make sure to have the other AAdvantage (former US Airways) account number handy as you will need it in a minute. Personally I kept my original AAdvantage account since that is the number I have used for all AAdvantage activity for years.
2. Select the "Merge Accounts" Option.
In your AAdvantage Account Summary there will be an option written in blue to "Merge Accounts". Select that button while logged into the account you wish to keep.
3. Input the information for the account you want merged into the AAdvantage account you are keeping.
While logged into the AAdvantage account you are keeping, you will enter the AAdvantage account (former US Airways account) that you want merged into your old existing AAdvantage account. Finding that new AAdvantage number should be pretty easy as it will be displayed on AwardWallet.com if you use that site, it was probably emailed to you in late March with the subject line "Welcome to the AAdvantage Program", and you can simply log in to AAdvantage using your US Airways Dividend Miles number to see the new AAdvantage number that account was assigned. Again, just be sure you are completing the merging from the AAdvantage account you wish to keep.
4. Wait a day or so for the merge to be completed.
If the information in the accounts lined up you will be told via a screen that the merger was successful, as well as be notified via an email to both the account that will be closed/merged and the account that will remain open. The merger itself is not instant, but instead is reported to take about a day. You will be notified again via email when the merger is complete. After that time your miles should all be combined into one account.
You can now use your combined big mileage bonus to book awesome award tickets!
