Royal Caribbean’s “Ultimate World Cruise” on Serenade of the Seas was the longest cruise itinerary ever offered by a major mainstream cruise line: 274 nights, seven continents, 65 countries and more than 150 destinations between December 2023 and September 2024. This guide is the retrospective on what made it work, what it cost, and what’s next for Royal Caribbean world cruising.
Last updated: 27 May 2026.
30-second view: the headline numbers
- Length: 274 nights (9 months at sea)
- Continents visited: 7
- Countries: 65
- Destinations: 150+
- Departed: Miami, 10 December 2023
- Returned: September 2024
- Ship: Serenade of the Seas (Radiance-class, capacity ~2,100 guests)
- Fares from: approximately US$60,000 per interior cabin to US$250,000+ for suites, per person
- Segments: guests could book the full 274 nights or four shorter “Ultimate” segments of 60 to 70 nights each
What made the Ultimate World Cruise different
Most world cruises run on dedicated luxury or premium ships (Cunard, Viking, Oceania, Holland America). Royal Caribbean’s “Ultimate World Cruise” was the first mainstream big-ship attempt at the format, on Serenade of the Seas — a Radiance-class ship that’s smaller and more traditional than Royal Caribbean’s headline Oasis or Icon ships. It sold out quickly and generated significant social-media coverage from guests aboard.
The four segments — for guests who couldn’t sail the full nine months
- Ultimate Americas Cruise: 60-night South America and Antarctica segment
- Ultimate Asia-Pacific Cruise: 73-night segment through Asia, Australia and the South Pacific
- Ultimate Middle East & Mediterranean Cruise: 60-night segment through Asia, the Middle East and the Mediterranean
- Ultimate Northern Europe & Beyond: 51-night segment through Europe, Africa and the Caribbean
Booking a segment meant joining the world cruise mid-itinerary and disembarking at a major port. This is the format Royal Caribbean is likely to repeat on future world-cruise sailings.
What it cost
Full 274-night fares started around US$60,000 per person for an interior cabin and ran to US$250,000+ per person for top-tier suites. Most fares included gratuities, dining, basic Wi-Fi and a substantial allowance of complimentary shore excursions across the nine-month sailing. Segment fares ranged from approximately US$11,000 to US$70,000 per person depending on length and cabin category.
Who took the Ultimate World Cruise
The full cruise drew a mix of retired travellers, mid-career remote workers, and lifelong cruise enthusiasts. A handful of “Ultimate World Cruise” guests gained sizable TikTok followings during the voyage, turning the cruise into a real-time travel reality format. Segment guests tended to be travellers using their annual leave to tick off a region.
What’s next for Royal Caribbean world cruises
Royal Caribbean has continued to schedule extended world-style itineraries on Serenade of the Seas, including the 2025/26 sailings and segments. Confirm the latest schedule with your Paramount Cruises specialist or browse our world cruises for current options across all lines.
“Royal Caribbean’s first ‘Ultimate World Cruise’ rewrote the rules on what a mainstream cruise line can do for a long-haul itinerary. For most travellers the 60-to-70-night segments are the more realistic way in, and they’re now the format Royal Caribbean and other lines are building around.”
Josh Harris, Cruise Specialist, Paramount Cruises
Frequently Asked Questions
How long was Royal Caribbean’s Ultimate World Cruise?
274 nights, departing Miami on 10 December 2023 and returning in September 2024. It remains the longest single cruise itinerary ever offered by a major mainstream cruise line.
Which ship operated the Ultimate World Cruise?
Serenade of the Seas, a Radiance-class Royal Caribbean ship carrying approximately 2,100 guests. Royal Caribbean deliberately chose a smaller, more traditional ship for the format rather than one of its Oasis or Icon-class flagships.
How much did the Ultimate World Cruise cost?
Full 274-night fares started at approximately US$60,000 per person in an interior cabin and rose to US$250,000+ per person in top-tier suites. Most inclusions (gratuities, dining, basic Wi-Fi, a generous shore-excursion allowance) were bundled into the fare.
Could you book a shorter segment of the Ultimate World Cruise?
Yes. Royal Caribbean split the world cruise into four segments of 60, 73, 60 and 51 nights so travellers who couldn’t take nine months off could still join for one region (Americas, Asia-Pacific, Middle East/Mediterranean, or Northern Europe).
Is Royal Caribbean running another Ultimate World Cruise?
Royal Caribbean has continued to schedule extended world-style itineraries on Serenade of the Seas through 2025 and 2026, generally in shorter segment-style sailings. For the current schedule, speak to a Paramount Cruises specialist.
How does it compare to a Cunard or Viking world cruise?
Cunard and Viking have run world cruises annually for decades, on dedicated premium and luxury ships with different onboard cultures. Cunard’s world cruise on Queen Anne or Queen Victoria is longer-format (typically around 100 nights) with more formal dining. Viking’s world cruise is small-ship, all-inclusive, and culture-led. Royal Caribbean’s “Ultimate World Cruise” was bigger-ship and more accessible-priced.
Plan a world cruise with Paramount Cruises
If a long-haul world-cruise itinerary appeals, the team at Paramount Cruises can match you to the right line, ship, segment and itinerary. We monitor every world cruise across Royal Caribbean, Cunard, Viking, Oceania, Holland America, Princess and Silversea.
Browse our world cruises · Browse Royal Caribbean · Call our cruise experts on 020 7947 0270
By Josh Harris. Last updated: 27 May 2026.
