<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Shout:
How far ahead would be the ideal time? I have heard some associates say they cant get seats six months ahead with miles but by paying money the seats were easy to get.
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As with anything miles related, the earlier you book, the better your chances. I don't know how far ahead CX lets you book - I'm sure somebody else does. The good thing about CX is that they let you waitlist for award flights/upgrades, so they sometimes clear even when they seem full up.