A big, beautiful, planDisney welcome to you, Meichele! Thank you for thinking of planDisney as a helpful resource and for sharing this question with us.
It sounds like you might currently have a 1-day theme park ticket to visit Disneyland Resort and are interested in changing the date of your visit. As you might already know, these
1-day tickets are priced by the tier associated with the date you selected for your original theme park reservation. It should be no problem to modify your theme park reservation, especially if your new date is in the same designated tier or lower. However, if you need to upgrade to a higher tier, you would indeed need to pay any price difference by visiting a Disneyland Resort Guest Relations location when you arrive. And, because your originally purchased ticket would no longer be valid, I suggest you double-check the reservation availability on the date of your intended visit to ensure that there are enough
park reservations remaining, as they are subject to availability.
I know this seems like a lot to track, but if you'd like to call and speak with a friendly Cast Member by phone, you can call the
Tickets line. They'll be happy to go over your options and give you specific guidance about the eligibility for ticket upgrades for your purchase. If, by chance I didn't understand your original question or if I can share more clarification, please don't hesitate to
send me a follow-up question! I hope this is helpful guidance, Meichele. If we can lend any other support in the meantime, I hope you'll feel welcome to reach out to
planDisney again.
Wishing you Wondrous Journeys,
Tishra