Hey there, Jennifer. Welcome to planDisney! Thanks for taking the time to visit us with your question.
Switching park reservation dates is a fairly simple process! You can do so on
Disneyland.com or
Disneyland mobile app, provided that: 1) the dates are in the same tier for your one-day ticket (or the new date is in a lower tier), and 2) there are park reservations still available. Before you change your reservation, please be sure to check out the
Theme Park Reservation Availability calendar to see which park is available on the day you wish to visit.
In order to switch your visit days, you'll first have to cancel your current park reservation. Then, return to the
“Theme Park Tickets & Reservations” page and under “If you’ve already purchased a ticket:”, click on “Make Park Reservations”. Pick the new date and park you wish to visit and confirm your selections. Once your new reservation is processed, you’ll receive a confirmation email.
I hope this information is helpful for you. Please don’t hesitate to
write us again if you have more trip-planning questions.
See ya real soon,
Kiki