Due to join the Princess fleet later this year, Enchanted Princess will sail the Mediterranean from Rome.
From May to September, Enchanted Princess will sail roundtrip on a selection of seven and 14-night voyages calling in Corfu, Kotor, Marseille and Naples.
It will then proceed to sail a series of 11-night Grand Mediterranean voyages between Rome and Barcelona.
Sky Princess, meanwhile, will spending its first UK season from April to September sailing roundtrip from Southampton on eight and 12-night British Isles cruises, as well as a number of 12-night Scandinavia and Russia voyages.
Regal Princess will sail from Southampton from April to October to a variety of destinations, including Iceland, Norway, the Mediterranean, the Canary Islands, the Baltics, Canada and New England.
Its itineraries will range from four to 24 nights.
All 2021 European voyages onboard Regal Princess and Baltic sailings onboard Sky Princess are on sale now.
Princess’s new roundtrip departures from Rome onboard Enchanted Princess, and British Isles sailings on Sky Princess, will be on sale in early October.
Tony Roberts, vice-president Princess Cruises UK and Europe, said: “Having three Royal-class ships sailing in Europe next year including two based in Southampton is testament to our commitment to offering UK holidaymakers an enhanced Medallion Class service, new onboard experiences, and a wealth of holiday options without the need to travel too far from home. We truly are so excited for every guest to experience these voyages.
“The addition of the new itineraries gives UK guests the opportunity to visit more destinations from Southampton than ever before, as well as the ease of travelling roundtrip from Rome for those who prefer to take a short flight straight out to the sunshine.”
All voyages in the new line-up are included as part of Princess’ stateroom upgrade offer, meaning all customers booking these voyages between 22 September and 23 November can take advantage of a free upgrade to a balcony from an inside stateroom.