As of 2026, we can look back and confirm that Oogie Boogie Bash (the specific Halloween party at Disney California Adventure) for 2023 sold out in record time. When tickets went on sale in July 2023, the high demand caused technical glitches and massive virtual queues, leading to every single date for the September and October season being completely booked within hours of the general public release. For the standard park admission at Disneyland Park during Halloween 2023, tickets did not "sell out" in the traditional sense, but the reservation system meant that popular dates (especially weekends and Halloween night itself) became unavailable weeks in advance. Travelers who didn't secure their spots early were often left with no choice but to visit on weekdays or check back daily for last-minute cancellations. This trend has continued into 2026, making it essential for Disney fans to mark their calendars for mid-summer ticket releases if they hope to attend any "after-hours" spooky events at the Anaheim resort.