Probably not in the summer but it may be doable in the fall/winter. Have the person who gave you the buddy pass carefully check availability for you up until departure day and if any flights look tight, have alternate plans.

Check this article out:

<a href="http://www.nonrev.net/articles/howto/index.htm" target="_blank">http://www.nonrev.net/articles/howto/index.htm</A>