Hi there, Vikki!
Welcome to the Disney Parks Moms Panel. I love that you are thinking about extending the magic of your Disneyland Resort vacation by staying another day in the parks. I'm happy to let you know that you are definitely able to upgrade your 1-day
park ticket to a ticket of longer duration. To do this, just head to one of the Main Entrance ticket booths on or before the date you plan on using your ticket. When you upgrade to a 2-day park ticket you will only need to pay the difference between the price of these tickets. It's super easy! Just make sure that you upgrade your ticket while it's still valid. If you wait until after your ticket is used, you will not be able to upgrade and will need to purchase a separate 1-day ticket.
No matter how many days you stay in the parks, you are eligible to add the fantastic
Disney MaxPass feature to your tickets one day at a time. This allows you to make the most of your day by making digital Disney FASTPASS selections right from your mobile device. Just make sure you download the
Disneyland app before your visit. After you enter the park gates you can link your ticket to the app and select "Get FASTPASS with Disney MaxPass" to begin using this great feature.
I hope this helps, and please feel free to return if you have any other questions.
-Jennifer