Welcome to planDisney, Jennifer. We are so glad you are here and brought this wonderful question to us. I'm delighted to help with your upcoming visit to the Disneyland Resort.
One of the things that I love about Disneyland Resort theme park tickets is how flexible they are. Plans can often change and you can absolutely change the dates of your visit (excluding special event tickets). The easiest way to do this is to
modify your theme park reservation at the Disneyland site. I've used this feature on several occasions and it's worked like a charm.
To do this, visit the Disneyland site and click on "Theme Park Reservations" found under the heading "My Disneyland" towards the top right. Next, click the button to "Make or Modify Park Reservations" and click the link to "Modify Reservation" next to the date you'd like to change. You will have the option to change your visit date or the theme park that you visit (or your starting park if using a Park Hopper ticket). Bibbidi-Bobbidi-Boo, that's all you need to do!
It's a great time to visit the resort with so many wonderful things happening.
Pixar Fest is in full swing and there are so many wonderful festivities to enjoy during this celebration of friendship and beyond.
Fantasmic! has also made its triumphant return and I fully enjoyed every moment of this spectacular show during my last visit.
Jennifer, I hope this helps and gets you on your way to your magical adventure. Here's hoping you have your best Disney day at the Happiest Place on Earth!
Michelle