You can absolutely do this, but you won't get to go on most of the good rides. Animal kingdom is only a half day park anyway, so start there and then do Magic Kingdom after. For the next day I'd start early in HS and then take the sky ride thing over to EPCOT.
So yes, it's entirely possible to visit four Disney parks in one day, even with kids in tow. All you need is a hopper ticket and a lot of enthusiasm. My boys have the latter in spades. This was honestly one of the best days of our whole 9 months of non-stop travelling to date and certainly of our USA road trip.
As a general matter, Animal Kingdom is the park that requires the least strategy and is the easiest place to beat the crowds in all of Walt Disney World. It doesn't require Genie+ or Individual Lightning Lanes, and is pretty easy to knock out everything–and then some–if you stay for a full day.
Full day park if you want to do everything & savor it. With good crowds, and doing almost everything, Animal Kingdom is like a 85% of your day park. Magic Kingdom is like a day and a half park.
Me, personally I always avoid the parks with the extra magic hours simply because they are going to be more crowded with resort guests. If you can manage all 4 theme parks and you have never been there before I would say definately go to all 4, and take the time to see each one if you can.
You can absolutely purchase a single-day park ticket to visit both Disney's Hollywood Studios and EPCOT. You'll need to add the Park Hopper Option to your ticket in order to visit both parks in one day.
Epcot Itinerary Planning TipsThere is no need to rush to the rope drop at the park opening. While there is a lot to see and do, you can easily fit in your favorite attractions during a single day at Epcot.
And let's face it, there are several rides that kids – and adults – will want to take again and again, and staying at Disney Hollywood Studios for two days will allow you to relax and enjoy your time there all the more.
EPCOT is arguably the least family-friendly park at Walt Disney World, so you may not need more than a few hours to do everything of interest if you have small children. With that said, a full day at EPCOT is highly recommended for first-timers.
Take It All In (7-10 days)If you want to see all the parks have to offer and still have plenty of time to relax, a week or so might be the perfect amount of time. You'll have the ability to spend one full day in each park — and maybe even a second if you discover a favorite!
No matter how long you stay at Walt Disney World if you plan your trip the right way you will have a great time. Ideal Length – 6-7 days is the best length if you are looking to visit all four Walt Disney World theme parks, two water parks and Disney Springs.
If your group wants to eat/drink/hangout do Epcot. If your group wants to do more rides/shows do HS. Galaxy's edge and Toy Story land can take up more than half your day and there is still so much to do at HS. Download the MDE app and check out the wait times and shows so you can start to plan out your days.
Q: What are the three best parks at Disney World? A: The three best Disney World parks are: #1 – Magic Kingdom, #2 – EPCOT, #3 – Animal Kingdom. Unfortunately, Hollywood Studios comes in at fourth on our list because it is very busy with long lines and better suited for teens.
Most Common Trip Length – 4 or 5 Days: This trip length works well for most people because you can visit all four Disney World theme parks, even possibly enjoy a second day at a favorite park, and it fits within most people's work vacation limits.
Magic Kingdom park and EPCOT are connected via monorail. EPCOT and Disney's Hollywood Studios are connected via boat. Magic Kingdom park and Disney's Hollywood Studios are connected via bus. Disney's Animal Kingdom theme park is connected to the 3 other theme parks via bus.
Movie Magic or Amazing AnimalsAnimal Kingdom has animal-inspired shows, food, rides, and attractions. If your little ones will be thrilled seeing a live Gorilla or a giraffe on Kilimanjaro Safaris, this Park is a must-see. Hollywood Studios is all about tapping into the glamour and glitz of the movie industry.
If you're into rides more than general theme park merriment and atmosphere, we suggest skipping Epcot, as it doesn't offer as many thrills. However, families, foodies and world's fair enthusiasts will likely enjoy their time at this concept park.