Joining the world's most popular frequent flyer programme online is quick and easy. Just click on the link below and choose 'Enrol in AAdvantage'. You'll be asked to review and accept our AA.com U.S. terms and conditions put in place to protect your online privacy. (If you would rather enrol by telephone, please contact AAdvantage Customer Service. Just as soon as you've completed a simple form you will receive your membership number and can start earning miles immediately. For instant enrolment visit AAdvantage below. For instant enrolment click Enrol and you will be redirected to AA.com U.S. To return to AA.com Netherlands use the back button on your browser.