Early bird gets the worm at Disney World. If you want to get the most out of your day at the parks, get there about 30-40 minutes before the park opens because you’ll be able to ride all of your favorite rides before the crowds come. You’ll have very short waits for popular rides like Toy Story Midway Mania, Space Mountain, Soarin, Frozen Ever After, or Expedition Everest. Avatar: Flight of Passage will still have a relatively substantial wait if you get there before park opening because of the demand (sometimes as much as 45 minutes to an hour as soon as the park opens), but this will still be significantly shorter than the standby wait later in the day (which can stretch over 2 hours easily).