We went to Disney Dec 14 Dec 22. The 14th - 17th were wonderful. We had the parks almost to ourselves, lines were so short we got everything we wanted to do done! I think the longest we waited was 10 minutes. Then the 18th everything changed. It was crazy (although I am sure it wasn't as bad as it is now). We saw the Soarin line at 200 min!!! That is absolutely crazy. Because of the experience of the last four days, we will not be going for some time (we have to recoop!) and we will defintely plan even better. So try two weeks before Christmas! It was lovely. I think many schools got out the 18th and the rest on the 21st.