Cruise ships are frequently classified by size, associated with a particular commercial cruise line, and not a more general industry-wide characterization. The example of the cruise line owning the biggest vessels of all (in terms of size) is illustrative.
Royal Caribbean International (RCI) classifies its vessels into eight different classes. The six Oasis-class ships have a capacity of 6.680-6.780 passengers and are among the world’s largest cruise ships. each has more than 16 decks, standing as small towns with distinct “neighborhoods” and numerous amenities to fill the expectations of wider social and age groups. In service since 2009, this class, which will expand with a seventh ship in 2028, has included the largest cruise vessel of the world until 2023.
Since 2024, RCI introduced the Icon class, which includes the Icon of the Seas, and is expected to include at least three additional ships by 2027. With a capacity of 5,610 passengers in double occupancy and a maximum capacity of 7.600 passengers, the Icon of the Seas is the largest vessel ever built and the first RCI-owned LNG-powered vessel and
When we compare these ships’ capacity to the Titanic, the Oasis-class Symphony of the Seas, the largest passenger ship in the world, can hold 5,157 more guests than the Titanic, which had a total passenger capacity of 2.453.
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