Cruise lines offering special deals for solo travelers, including waiving single supplements

Among the deals are three- to 14-night sailings in the Caribbean, departing between December and March 2019, with fares starting at $600 per person. Those looking for last-minute trips to Europe can choose from seven- and nine-night sailings in the Mediterranean, including itineraries in Greece, France, Italy and Spain, starting at $1,690 per person with no single supplement.