Big Ship Cruise Lines and Their Biggest Ships
Royal Caribbean, Carnival, MSC and Norwegian — each line’s giants and the ports they sail from.
Quote a Big-Ship CruiseWhat Big Ship Cruise Lines Offer
Big ship cruise lines build their brands around scale: water parks, roller coasters, Broadway-style theaters and dozens of restaurants, carried on ships that hold several thousand guests. If that is the cruise you want, the useful questions are which line’s giant suits you, what is only on that ship, and which port it sails from. World’s Biggest Cruise Sale answers those questions line by line, then looks at the busiest cruise ports in the world, where most of these ships are based — and how to catch a sale on them.
Biggest Royal Caribbean ship
The Icon class, the Oasis class behind it, and where each giant sails from.
Royal Caribbean’s giants →
Biggest Carnival ship
The Excel class with its roller coaster, the 2027 newcomer and the ships ordered after it.
Carnival’s giants →
Busiest cruise port in the world
Port Canaveral and PortMiami, their official passenger counts and the giants each one hosts.
See the ports →The Big Ship Cruise Lines at a Glance
| Cruise line | Its biggest ships | Approximate size | Based at (examples) |
|---|---|---|---|
| Royal Caribbean | Icon class: Icon, Star and Legend of the Seas | About 250,000 gross tons | Miami, Port Canaveral, Fort Lauderdale |
| MSC Cruises | World class: MSC World Europa, MSC World America (MSC World Asia from December 2026) | About 216,000 gross tons | Miami (World America); Europe |
| Carnival Cruise Line | Excel class: Mardi Gras, Carnival Celebration, Carnival Jubilee | About 180,000+ gross tons | Port Canaveral, Miami, Galveston |
| Norwegian Cruise Line | Breakaway Plus class, led by Norwegian Encore | About 165,000 to 169,000 gross tons | Varies by season |
Disney Adventure, at about 208,000 gross tons, would rank between MSC and Carnival, but it sails from Singapore. For a single ranking of every giant regardless of line, our sister site World’s Largest Cruise Sale lists the biggest cruise ships in order.
Big Ships, Different Personalities
Size is where the similarity ends. Royal Caribbean builds its giants around thrills and distinct neighborhoods. Carnival keeps its signature fun-ship atmosphere and adds headline rides. MSC brings a European style, with long indoor promenades and a strong family program. Norwegian is known for flexible dining and no fixed dinner times. Two ships of similar tonnage can feel completely different, so match the line to the way you like to travel before you compare ships. Recommended Cruise Lines profiles each cruise company and who it suits.
Catching a Sale on the Biggest Ships
- Price the giant and its older sister. The line’s previous class often sails similar routes for less.
- Know the line’s sale rhythm. Some lines stage one headline event; others rotate offers weekly. Largest Cruise Sale explains which sale each line treats as its biggest.
- Book scarce cabins early. Family suites and holiday-week balconies on the newest ships can sell out before a sale arrives.
- Watch the early-year season. Big-ship offers cluster from January to March; WaveSeason.com collects them, and Cruising for Less tracks live fares year-round.
Our cruise advisors at Mister Cruise quote the big ships every day. Tell us the line or the ship and your dates, and we will compare it with its sisters and rivals. To hear about new big-ship sailings and sales, join the Mister Cruise special-offers newsletter.
World’s Biggest Cruise Sale is part of the Smart Traveler network, led by Mister Cruise. He has sold travel since 1972 and worked full-time in the industry since 1977. He has sold or originated more than $500 million in cruises and has trained more than 500 travel agents.
When you ask for a quote, our cruise advisors at Mister Cruise handle it personally — not a call center — and book everything for you. Meet Mister Cruise →
Big Ship Cruise Lines: Quick Answers
Which cruise line has the biggest ship?
Royal Caribbean. Its Icon-class ships are the largest cruise ships in service, and its Oasis class fills most of the places just below them.
What are the big ship cruise lines?
Royal Caribbean, Carnival, MSC Cruises and Norwegian run the most mega-ships for American travelers. Disney, Princess and Celebrity also sail very large ships, and several European brands do too.
Do big-ship lines run sales?
Constantly. Each has its own rhythm of seasonal and headline events, and the big ships are included. Our cruise advisors at Mister Cruise can tell you what is running for the ship you want.
Find the Big Ship That Fits You
Royal Caribbean, Carnival, MSC or Norwegian: tell us what you enjoy and our cruise advisors at Mister Cruise will match you to the right giant, with free quotes.
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