Princess Cruises has cut the price of 15 British Isles sailings due to depart next summer from Southampton.
Discounts are offered from 29 July to 10 August on eight or twelve night departures between April and October 2021.
The cruises will sail round-trip from Southampton on the 3,080-guest Crown Princess, which will be based in the UK next summer.
Fares start at £649pp for an eight-night cruise and £799pp for a twelve-night cruise. Some itineraries offer third and fourth guest fares from £149pp.
Deals include a 12-night British Isles with Portland cruise calling at Portland in Guernsey, Cork (Cobh), Dublin, Belfast, Glasgow, Invergordon, Edinburgh and Le Havre.
Prices from £799pp for two people sharing an inside stateroom and £199pp for third and fourth guests mean a family of four could travel for £499pp.
Crown Princess will also sail an eight-night Ireland and Scotland cruise calling at Portland, Cobh, Dublin, Glasgow and Holyhead. Prices are from £649pp for two people sharing an inside stateroom departing in April.
Tony Roberts, vice president of Princess Cruises UK and Europe, said: “We are thrilled to offer our guests some great value deals for those seeking a fantastic holiday option a little closer to home."