Originally Posted by eagle92

They are retiring "A" Class and converting them to "Z". See this post frrom CO Insider from the Mileathon thread...sorry...no link to the post cause I don't know how to link to a single post.

"If you're buying an A class fare for travel a little further out, there's some good news. Next month, we'll be retiring the letter A from our fare class lineup, and the fares currently sold as A class will turn into Z class for travel on or after Oct. 25, 2009. This means if you buy an A class fare for Oct. 25 or later, your booking will be converted into Z class and you'll get the corresponding Z class Mileathon credit. If you're traveling Oct. 24 or before, however, you're out of luck."