In 2026, you can make Disneyland theme park reservations up to 240 days (approximately 8 months) in advance. This window was recently extended from the previous 180-day limit to give travelers more flexibility. For "Magic Key" (Annual Pass) holders, the window is typically shorter, often around 90 days, and they are limited in how many "active" reservations they can hold at once. It is a high-value peer tip to book as early as possible for high-demand periods like Disney's 70th Anniversary celebrations throughout 2025-2026, or during the Christmas and Spring Break holidays. If you are staying at a Disneyland Resort Hotel, you should link your hotel reservation to your account immediately, as this sometimes provides a "dedicated" pool of park reservations. While "same-day" reservations are sometimes available on weekdays, the most popular parks—especially Disneyland Park—frequently hit their reservation capacity weeks in advance during the peak summer and holiday seasons.