
The biggest cruise ship in the world is usually listed as Icon of the Seas by Royal Caribbean. Its sister ship, Star of the Seas, is listed at a very similar size, so both Icon Class ships sit at the top of current cruise-ship rankings.
The Biggest Cruise Ship In The World Is Icon Of The Seas
Icon of the Seas entered service in 2024 and became the world’s biggest cruise ship by gross tonnage. Royal Caribbean lists it at 250,800 gross tons, with 20 decks and space for up to 7,600 guests.
Star of the Seas is another Royal Caribbean Icon Class ship with similar listed dimensions, so rankings may place both ships together at the top.
How Big Is Icon Of The Seas?
Icon of the Seas is built at a scale that feels closer to a floating resort than a traditional cruise ship.
- Gross tonnage: 250,800 GT
- Length: about 1,196 feet
- Decks: 20
- Maximum guest capacity: up to 7,600 guests
- Cruise line: Royal Caribbean
- Class: Icon Class
- Entered service: 2024
- Sister ship: Star of the Seas
What Is On Icon Of The Seas?
Icon of the Seas has neighborhoods, pools, entertainment venues, family areas, dining spaces, and large water attractions.
Some of its main features include:
- multiple pools
- large waterslides
- family-focused areas
- theaters and live entertainment
- many restaurants and bars
- open-air decks and ocean-view spaces
Its size is not only about height or length. The ship is designed to hold many different resort-style spaces in one floating destination.
Where Does Icon Of The Seas Sail?
Icon of the Seas sails from Miami, Florida, with Caribbean itineraries. Routes and ports can change by season, so travelers should check the latest sailing schedule before booking.
For cruise planning basics, passport rules can vary by route, nationality, and port stops.
Before You Go On A Cruise
A large cruise ship is easier to manage when your phone is ready for boarding details, cruise apps, port maps, bookings, and travel updates before and after sailing.
For cruise trips across different destinations, Eskimo offers a Global eSIM plan without physical SIM card swaps. New Eskimo users can also get free 500MB of Global Data.
FAQ
What Is The Biggest Cruise Ship In The World?
The biggest cruise ship in the world is usually listed as Icon of the Seas by Royal Caribbean, with Star of the Seas listed at a very similar size.
How Big Is Icon Of The Seas?
Icon of the Seas is listed at 250,800 gross tons, about 1,196 feet long, with 20 decks and capacity for up to 7,600 guests.
Is Star Of The Seas Bigger Than Icon Of The Seas?
Star of the Seas is listed at a very similar size to Icon of the Seas. Both are Royal Caribbean Icon Class ships and sit at the top of current cruise-ship size rankings.
Which Cruise Line Has The Biggest Ships?
Royal Caribbean operates the biggest cruise ships in the world, including Icon of the Seas and Star of the Seas.
Where Does Icon Of The Seas Sail From?
Icon of the Seas sails from Miami, Florida, mainly on Caribbean itineraries.

























