No, theme park tickets purchased for the Disneyland Resort in California are not valid for use at Walt Disney World in Florida, and vice versa. These two resorts operate as separate business entities with their own distinct ticketing and park reservation systems. However, if you have unused, non-expired Disneyland tickets and your plans change, the good news is that while the tickets are non-refundable, they never lose their value. You can apply the original purchase price of an unused Disneyland ticket toward the purchase of a new ticket for a future Disneyland visit. For a Walt Disney World trip, you must purchase an entirely separate ticket. It is also important to remember that in 2026, both resorts still require you to check the reservation calendar and book a specific park entry date in addition to having a valid ticket.