Originally Posted by
mmthomas44
Northwest miles do not expire, DL does. Factor that into your planning for when to transfer. I am not sure if miles transferred to DL count towards bumping the account expiration date at DL.
See this:
http://www.delta.com/skymiles/about_...ules/index.jsp
If you use an Amex Skymiles card or do any number of other things, the way I read this, the miles do not expire.
This was a policy change effective Jan 1, 2009.