In 2026, the booking window for Universal Studios Japan (USJ) typically opens two months (approx. 60 days) in advance. This is particularly critical for the Universal Express Pass, which often sells out within hours of being released for popular dates. While standard Studio Passes (entry tickets) can sometimes be purchased closer to the date, the Express Pass—especially those including "Timed Entry" for Super Nintendo World—requires precise timing. For 2026 visitors, it is a "pro-tip" to check the official USJ website or authorized partners like Klook at midnight Japan Standard Time exactly 60 days before your planned visit. Due to the 25th Anniversary celebrations in 2026, demand is exceptionally high, and travelers who wait until 30 days out often find that all "fast-track" options for attractions like Mario Kart or The Flying Dinosaur have completely vanished.