ObViously that might depend on exactly where you want to stay and just how exacting you are in your lodging demands. However, I think it is safe to say a few months out would be fine, and maybe even much less depending on your needs. Jane and I usually book several months out, but that is usually after we've booked airfare. Enjoy, AC is a beautiful place and I just booked our 6th trip there this past weekend for September Yeah, I know that is well in advance but I used frequent flyer miles so I had to jump on it. Have fun!