Carnival Kids Sail Free Promotion 2025. If you’re thinking about a carnival cruise, it sounds like you’re close to making a great vacation choice. In 2012, i booked a december cruise during the kids sail free promotion in july and snatched a family suite for 4 for.

Infants must be at least 6 months of age at the time of embarkation in order to sail. 3rd/4th/5th guests are free combinable with carnival’s fun select rates only.