Originally Posted by
olando
I have a few AA miles that are due to expire tomorrow. I flew on AS on Wednesday and hoped to credit those to AA which I got the impression I could. Having a look around it seems that they can take some time to post. I presume if they don't post by tomorrow I'll lose the expiring miles and I won't get them back when the AS miles post. Is that assumption correct?
You will lose the miles, but once the AS miles post, you should contact AA and ask to have them activated, since the earning activity occurred prior to expiration. If I where you, I'll play it safe and buy something throught the AA portal to create activity now. Also set yourself a reminder for 16 months so that you can repeat this process again in case you do not fly AA a lot.