Hey there, Alina!
Welcome to planDisney and thanks for bringing your question to us. I'm sorry to hear that you aren't able to make your original plans to visit the Disneyland Resort but I hope that you'll be able to re-schedule for a later date!
You may absolutely use your ticket on another day if you are unable to make your original reservation. Just log into your
Disneyland account and navigate to
Tickets and Reservation Details. Choose the date in question and select "Modify Reservation" if you know the date to which you would like to re-schedule, or "Cancel Reservation" if you would like to cancel and select a new date later. If you have a 1 Day
Tiered Park Ticket or a special
California Resident Ticket, some dates might not be available. Also, be aware of your ticket's expiration date.
Alina, I certainly hope that you'll be able to visit the Happiest Place on Earth soon! There's always something fun going on because the
Disney100 Celebration will last all year long! And the
Halloween Season is just over a month away! Feel free to visit us again if you have any more questions. I wish you the best and hope to see you again soon.
Have a Magical Day!
-Al