The cost of Disneyland depends on how many are in your group, what the ages are of your group members, if you want to go to one park or two, and how long you plan to visit. A one day park hopper (a ticket to get into Disneyland and California Adventure in the same day) is just over $100 for an adult and is just under $100 for children between the ages of 3 and 9. For children under 3, they are admitted free. This cost is just to get into the park(s). This does not include the price of parking (which is around $15 for one day) nor does it include any type of food, drink or souvenirs. To say there is an average cost to Disneyland is a misnomer because it really depends on what you make of your experience.