Traveling with children under the age of two isn't always easy from a logistics standpoint, but it is economical. Airlines let them fly for free on your lap and they usually snooze in hotel rooms and laze by the pool at most all–inclusives for no extra charge. The one exception to this rule is cruising, where everyone on board pays, no matter what.
Fares for children under 18 aren't typically the same as for adults, as long as they are sharing a cabin with two adults (they are considered third passengers and pay a percentage of the full cruise fare). Norwegian Cruise Lines used to be one of the cheaper options, since the line charged a smaller percentage if the child was under two (it's not like they are gorging themselves at the midnight buffet). According to a report by Travel Weekly, the cruise line has discontinued the policy and all children, regardless of age, pay the same rate. This policy is also in effect on Royal Caribbean and Carnival cruises. Keep in mind that infants under six months of age are not permitted on Norwegian cruises (which is standard for most cruise lines, except for long–haul trips like TransAtlantic cruises, where the minimum age is higher).
Disney Cruise Line is (not surprisingly) one of the only lines that discounts more for children two and under. A four–night Bahamas cruise in December costs $632 per adult, and $282 for an infant under the age of 2. If your child is 3, the fare would be $564.
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