For most guests on Norwegian Cruise Line (NCL) in 2026, you can begin booking your theater shows, comedy acts, and specialty dining reservations 120 days before your sail date through the "My NCL" portal or the mobile app. If you are staying in the "Haven" suites or hold high-tier "Latitudes" loyalty status, this window may open as early as 125 or 130 days out. Booking in advance is a high-value strategy for popular shows like The Choir of Man or Beetlejuice, which can sell out their prime-time slots before the ship even leaves the pier. If you miss the pre-booking window, a small percentage of tickets are usually held back for "onboard" booking; you can secure these via the NCL App once you connect to the ship's Wi-Fi or by visiting the "Box Office" desk on Deck 6 or 7 immediately upon boarding. For smaller venues like "Syd Norman’s Pour House," reservations aren't usually taken, so the peer-to-peer advice is simply to arrive 30 minutes early to snag a seat.