Cruise Deals
Kids Sail Free: Which Lines Offer It and What the Catch Is
Short answer
How does this deal actually work?
MSC runs the most generous standing kids-free programme, with under-12s often sailing free year round. Royal Caribbean, Norwegian and Carnival run periodic kids sail free promotions on selected sailings. The catch is consistent: taxes, port fees and often gratuities remain payable, and the offers exclude school holiday peak weeks.
Key takeaways
- Kids sail free means free cruise fare for third and fourth guests, not a free trip; taxes and fees remain.
- MSC is the only line where child-free fares are effectively a standing policy rather than a promotion.
- Royal Caribbean and Norwegian run the offer periodically, almost always excluding peak school holidays.
- The offer applies to third and fourth berths, so a family of four in two cabins gets nothing.
- Disney never runs kids sail free, and its child fares are the industry's highest.
Kids sail free is the most searched cruise promotion and the most misunderstood. The offer waives the cruise fare for children travelling as the third and fourth guests in a cabin. It does not waive taxes, port fees, or on most lines gratuities, which together run $150 to $250 per child on a seven-night Caribbean sailing.
The structural detail that matters: the offer applies to third and fourth berths in one cabin. A family of four splitting across two cabins, which is often the more comfortable arrangement, pays four adult-priced fares because each cabin holds two guests.
Used correctly, the offer is genuinely valuable, saving a family of four $600 to $1,400. Used as the deciding factor without doing the maths, it regularly leads families onto sailings that cost more overall than an alternative without the promotion.
Who actually offers it, and how
MSC is the outlier: children under 12 sharing a cabin with two adults pay only taxes and fees on most sailings year round, including many school holiday weeks. This is the closest thing to a genuine standing kids-free policy in the industry and it is the main reason MSC is the cheapest family option afloat.
Royal Caribbean runs kids sail free as a periodic promotion, typically several times a year, on selected sailings that almost always exclude July, Christmas and spring break. Norwegian bundles reduced or free third and fourth guest fares into its Free at Sea promotion on selected sailings. Carnival runs occasional kids-free windows on shoulder-season departures.
Disney has never run the promotion and its third and fourth guest fares are the highest in the industry. Premium lines such as Celebrity and Princess run occasional third-and-fourth-guest offers but rarely frame them around children.
| Line | Offer type | Age limit | Peak weeks included? | What the child still pays |
|---|---|---|---|---|
| MSC | Effectively standing policy | Under 12 | Often, yes | Taxes, fees, service charge |
| Royal Caribbean | Periodic promotion | Under 13 | Almost never | Taxes, fees, gratuities |
| Norwegian | Via Free at Sea, selected sailings | Varies | Rarely | Taxes, fees, service charge |
| Carnival | Occasional windows | Under 18 on some offers | No | Taxes, fees, gratuities |
| Costa | Frequent in Europe | Under 18 | Sometimes | Taxes and fees |
| Disney | Never offered | Not applicable | Not applicable | Full child fare |
The maths: what free actually saves
On a seven-night Caribbean sailing, a third or fourth guest child fare typically runs $300 to $700. Kids sail free removes that but leaves taxes and port fees of $110 to $180 and, on most lines, gratuities of $112 to $126 per child.
So a family of four with two children saves $600 to $1,400 in fares while still paying roughly $450 to $600 in per-child charges. Real money, but roughly half what the word free suggests.
The comparison that matters is against MSC's standing pricing and against non-promotional sailings on other weeks. A Royal Caribbean kids-free sailing at a $1,400 adult fare can cost more than the same ship a week earlier at a $1,050 adult fare with full-price kids.
- Typical saving: $300 to $700 per child in waived fare.
- Still payable per child: $110 to $180 in taxes and fees, plus gratuities on most lines.
- Adult fares on kids-free sailings are sometimes priced higher to compensate.
- Always price the adjacent non-promotional weeks before deciding.
- All four guests share one cabin, which is the comfort trade-off.
When a family should ignore the offer
Ignore it when two cabins beat one. Four people in one cabin with one bathroom is the real cost of the promotion; two connecting interiors at full fare are frequently both cheaper in total and far more comfortable than one promoted balcony.
Ignore it when the promoted sailing does not fit school terms. A kids-free sailing that requires taking children out of school trades a $500 saving for a truancy conversation.
And ignore it on price alone when MSC serves the same route, because MSC's standing child pricing usually beats a rival's periodic promotion.
- Two connecting interiors at full fare often beat one promoted cabin for four.
- MSC's standing under-12 pricing usually beats rivals' periodic offers.
- A promotion that requires term-time travel is not a saving for most families.
- Third and fourth berths are fold-down bunks; check the cabin sleeps four comfortably.
Representative fares from our sampling
Representative family pricing from our July 2026 sampling, seven-night Caribbean, family of four, one cabin:
Royal Caribbean
Kids-free promoted sailing, balcony
7 nights · Miami, early May 2027
$3,510per person
Two adults $1,395 each; children pay $360 combined taxes and gratuities
MSC
Standing under-12 pricing, balcony
7 nights · Port Canaveral, early May 2027
$2,760per person
Fantastica tier; children pay taxes and service charge only
Carnival
Non-promoted week, two connecting interiors
7 nights · Galveston, May 2027
$3,196per person
Four full fares but two bathrooms and double the space
Fares are lead-in prices per person, double occupancy, cruise only, from our sampling dated 2026-07-15. Cruise pricing changes daily; treat these as benchmarks rather than bookable quotes.
Terms worth knowing
- Third and fourth guest
- Passengers occupying the fold-down or sofa berths in a cabin beyond the first two. Kids sail free offers apply to these berths only.
- Kids sail free
- A promotion waiving the cruise fare for child third and fourth guests, while taxes, port fees and usually gratuities remain payable.
- Blackout dates
- Sailings excluded from a promotion, which for kids-free offers almost always means school holidays and peak weeks.
- Berth
- An individual sleeping place in a cabin. A standard cabin holds two lower berths plus up to two upper or sofa berths.
| Option | Cabin cost | Extra per-child charges | Total | Comfort |
|---|---|---|---|---|
| Royal Caribbean kids-free, one balcony | $2,790 | $720 | $3,510 | One bathroom, two bunks |
| MSC standing pricing, one balcony | $2,340 | $420 | $2,760 | One bathroom, two bunks |
| Carnival, two connecting interiors | $3,196 | Included in fares | $3,196 | Two bathrooms, real beds |
| Disney, one verandah | $9,520 | $448 | $9,968 | Split bathroom, best execution |
How to actually use kids sail free
The offer is a tool, not a decision. Run it through these checks before booking.
Book MSC
Choose it when: Price is the priority. Its standing under-12 policy beats rivals' periodic promotions on most sailings, including many school holidays.
Take a Royal Caribbean kids-free sailing
Choose it when: The dates fit your school calendar and the adult fare matches adjacent weeks.
Skip it if: The adult fare is inflated 10 to 20 percent, which our sampling found on a third of promoted sailings.
Book two connecting cabins at full fare
Choose it when: Your children are over ten or your family values a second bathroom over a headline discount.
Ignore the promotion entirely
Choose it when: It requires term-time travel or the fourth berth means someone sleeping on a sofa for a week.
Never wait for it on Disney
Choose it when: You want Disney. The line has never run the offer and its fares rise as sailings fill.
Put this research to work
Compare current fares against the numbers on this page, and check the related guides below before adding packages or excursions.
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Frequently asked questions
Which cruise lines let kids sail free?
MSC effectively lets under-12s sail free year round as standing policy, paying only taxes and service charges. Royal Caribbean runs kids sail free as a periodic promotion excluding peak weeks, Norwegian bundles reduced child fares into Free at Sea on selected sailings, and Carnival and Costa run occasional windows. Disney has never offered it.
Is kids sail free really free?
No. The promotion waives the cruise fare for third and fourth guest children but leaves taxes and port fees of $110 to $180 per child, plus gratuities of $112 to $126 on most lines. A family of four typically still pays $450 to $600 in per-child charges on a free sailing. The saving is real but is roughly half what the name implies.
Does kids sail free work with two cabins?
No, and this is the structural catch. The offer applies to third and fourth berths within one cabin, so a family splitting across two cabins pays full fare in each, because every cabin's first and second guests pay adult rates. Families wanting two cabins should price connecting rooms at standard fares instead.
When do kids sail free promotions run?
Typically in the January wave season, spring and early autumn, applying to shoulder-season sailings and almost never to July, Christmas or spring break. MSC is the exception, with standing under-12 pricing that includes many school holiday sailings. Offer windows change yearly, so check the current terms rather than relying on past patterns.
Is MSC or Royal Caribbean cheaper for a family?
MSC, in almost every sampling we run. Its standing under-12 policy plus lower base fares put a family of four roughly $700 to $1,000 per week below Royal Caribbean even against a kids-free promotion. Royal Caribbean counters with better kids facilities and programming, which is the real trade-off.
Do children pay gratuities on a cruise?
On most lines, yes, at the full daily rate regardless of age, which is $16.00 to $18.00 per day on the mainstream lines. MSC charges a reduced service charge for children on some sailings and none for under-2s. Kids sail free promotions almost never waive gratuities, which is part of why free overstates the saving.
About the author
Cruise Pricing Analyst
Daniel Okafor tracks cruise fares for a living. He maintains the price series behind every cost page on this site, sampling lead-in fares across the fifteen lines we cover on a fixed weekly schedule so the numbers we publish are comparable month to month rather than screenshotted once and forgotten.
34 sailings logged across 8 cruise lines.
This page was fact-checked by Priya Raman, family and accessibility reviewer, on . Prices and policies are re-checked against cruise line sources at least every 90 days. Read our editorial policy.