Welcome to planDisney, Elizabeth! Thanks so much for coming to us with your question today. Since it looks like you're arriving at Walt Disney World Resort tomorrow, let's jump right in and discuss purchasing tickets at the gate, and why there are some extra considerations to make for this coming weekend.
Elizabeth, typically it is possible to purchase Theme Park tickets at the gate but this weekend is a holiday weekend and one of the most popular times of the year at Walt Disney World Resort. That said,
there are no Disney Park Pass reservations available for tomorrow, December 29 for any Theme Park. If you can adjust your plans to visit on Saturday or Sunday, then it still may be possible to purchase tickets but since Disney Park Pass reservations for
Magic Kingdom Park are sold out until January 1, you will need to purchase a ticket with the Park Hopper option if you want the chance to visit that Theme Park. Keep in mind, however, that it is not guaranteed that you will be able to hop to Magic Kingdom Park at 2:00 PM, as it may reach capacity at or around that time.
EPCOT,
Disney's Hollywood Studios, and
Disney's Animal Kingdom still have some availability this weekend, so they may be worth considering if you're hoping to spend some time at The Most Magical Place On Earth!
I hope this answers your question, Elizabeth, and please let us know if there's anything else we can do to help you plan your magical vacation.
Jessica