Cruise lines and promo windows where kids sail free. Most of these are seasonal promotions, so we mark the windows and link the official terms - always double-check the dates before you book.
Deals marked "limited-time promo" have booking windows; standing policies can still vary by location. Every card links the official source so you can confirm before you book.
Costa Cruises · Carnival Corporation
Select sailings worldwide
Kids 3 and under · children sharing a cabin with 2 adults (typically 3rd/4th guest)
Children under 4 sail free sharing a cabin with 2 adults; port taxes and extras (travel insurance, flights, transfers) are still charged; older kids get family-offer discounts that vary by sailing - discounts, not free, so only the under-4 tier is listed.
Verified 2026-07-17 · Source ↗Holland America Line · Carnival Corporation
Alaska, Europe, Caribbean, Canada & New England, Mexico, Panama Canal
Kids 18 and under · 2 kids free
Children 18 and under sail free as the 3rd/4th guest in the stateroom, maximum 2 free kids per booking. New bookings only, select sailings, excludes Alaska cruisetours. Non-government fees still charged.
Verified 2026-07-17 · Source ↗Hurtigruten · Hurtigruten Group
Norwegian coast
Kids 5 and under · no stated cap
Port-to-port coastal voyages; ages 6-17 pay 25% of the fare (75% discount - not free, so not part of this listing).
Verified 2026-07-26 · Source ↗Princess Cruises · Carnival Corporation
Select sailings worldwide
Kids 17 and under · 2 kids free
The 3rd and 4th guest in the same stateroom as 2 full-fare guests sail with $0 cruise fare on select sailings; government taxes and fees still apply to everyone. Not available on every sailing. Note: mechanically any 3rd/4th guest qualifies regardless of age - Princess markets it as Kids Sail Free.
Verified 2026-07-17 · Source ↗One email a month - newly verified deals, and offers about to expire.
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