Our schools, like many in the South, are usually out around the 21st, 22nd, 23rd of May. That is when we try to head straight for WDW. This year, due to other commitments, we had to arrive after Memorial Day and were amazed at how much more crowded it was. I join the other posters in saying go the week or at least a few days before if possible. Many locals are at the parks that weekend also.