Most single supplements are 150-200 percent of the lowest per person price available at the time you book the cruise. In other words, if the double occupancy rate for two people in a cabin is $500 per person for a four-night cruise, it can be $750 to $1,000 for a single cruiser to travel in their own private cabin.

The cost of a singles cruise in 2026 varies significantly based on the duration, cabin type, and the level of "solo-specific" programming. For a standard 4-to-5-night Caribbean sailing, prices typically start around $750 to $950 per person for an interior room. For longer 7-to-10-night voyages, you can expect to pay between $1,200 and $2,800. A major factor in the price is the "single supplement" fee; while most traditional lines charge solo travelers nearly double the per-person rate to cover the "lost" second passenger, lines like Virgin Voyages, Norwegian, and Royal Caribbean have expanded their inventory of "Studio" cabins designed for one, which eliminate this surcharge. Premium "Singles-Only" hosted groups, which include private cocktail parties and dedicated mixers, often add a $200–$400 premium to the base fare but provide a much more structured social experience.