Hi there, Linyuan!
Hooray-- your visit to the Happiest Place on Earth is just around the pixie-dusted corner! I’m glad you brought this question to
planDisney as you prepare to set out on your magical adventure.
Generally, the best way to upgrade a
theme park ticket you already purchased to a ticket type of greater value (such as adding the Park Hopper option or additional park days) is by visiting a Disneyland Resort Main Entrance Ticket Booth, located in the Esplanade between Disneyland Park and Disney California Adventure Park, in person once you arrive. Be sure to do this
before the end of the regular operating hours for the theme parks on the last day your ticket is valid or you won't be able to upgrade it. This type of change cannot be made online, but if you have other questions about upgrading your tickets, you can call the ticket helpline at (714) 781-4636 to speak with a Cast Member.
I hope this helps, Linyuan, and that your vacation is filled with magical moments from start to finish! Please feel free to send us any other
Disneyland Resort questions you have.
Wishing you magic,
Courtney