Yes, you can absolutely book a cruise as a solo traveler, and it has become significantly easier and more affordable in recent years. Historically, solo cruisers often had to pay a "Single Supplement" fee, which could be up to 100% of the second person's fare, essentially charging one person for two. However, as of 2026, many major lines have pivoted to attract the growing solo market. Norwegian Cruise Line (NCL) is a leader in this area, offering dedicated "Studio" cabins specifically designed and priced for one person, which include access to a private "Solo Lounge" for meeting fellow travelers. Other lines like Royal Caribbean, Celebrity, and Virgin Voyages have also added single-occupancy cabins to their newest ships. When booking, you simply select "1 Passenger" in the search filters. Beyond the cabin, cruises are excellent for solo travelers because of the "social by design" nature of the experience; you can join "solo traveler meetups," participate in group trivia, or opt for "traditional dining" where the maître d' will seat you with other friendly guests, ensuring you have the choice between total privacy and a lively social life.