For a 2026 trip to Walt Disney World, you should buy your tickets at least 2 to 4 months in advance, though the "ideal" window is actually 7 days before your stay if you are staying at a Disney Resort. This is because of the "Lightning Lane Multi Pass" system; resort guests can begin making their ride selections 7 days before check-in, but you must have your tickets purchased and linked to your account to do so. If you are staying off-property, your booking window opens 3 days in advance. Beyond "line-skipping" logistics, buying early protects you from the "annual price hikes" that Disney typically implements in the late winter or early spring. While "Park Reservations" have been removed for most date-based tickets, they are still required for Annual Passholders and certain "non-dated" tickets, so checking the "Availability Calendar" several months out is still a wise move for peak periods like Christmas or Spring Break. In short: if you want the best choice of "Lightning Lanes" and the lowest possible price, don't wait until the week of your trip; have your tickets secured and linked by the 90-day mark.