Can I cancel or modify my theme park ticket or vacation package?
Tickets and packages at Walt Disney World
Resort are nontransferable and nonrefundable. You cannot cancel or get a
refund for a ticket or package, but in some cases you can use unexpired
theme park tickets for a future vacation.
However, be aware that
unless you purchased the No Expiration Option, theme park tickets
purchased after 2004 expire 14 days after their first use. While the No
Expiration Option is no longer available, if you have previously
purchased theme park tickets with the No Expiration Option, your tickets
will still be honored.