Avoid long ticket lines and purchase one-day Disneyland or Disney California Adventure Park tickets with Tours4Fun! We feature adult and child priced tickets for one park. To find one-day park hopper passes good for both parks click here. Disneyland Come discover what has been widely known as "the happiest place on earth."5/5(51). Disney uses its crowd calendars to categorize days and single-day tickets are now assigned to a specific day of use. Single-day tickets at both Disneyland Park and Disney California Adventure cost $97 for adults on value days, $ on regular days, and $ on peak days. Buy Tickets Early and Use Them or Lose Them.