To paraphrase Ben Franklin, nothing is certain in this world except death, taxes and Disneyland ticket price increases. The only uncertainties surrounding the inevitable Disneyland price hike: When and how much? A pair of Disney theme park fan websites have forecast Disneyland and Disney California Adventure will raise ticket prices again in early October just a few weeks from now. MousePlanet reports Disneyland is expected to announce a ticket price increase on Oct. 8.