P&O Cruises Ventura resumed operations at the weekend, setting sail for the Canary Islands.
That makes half the P&O Cruises fleet now back in service as Ventura joins Iona and Britannia, both of which sailed a series of summer UK coastal cruises and have been sailing internationally since September.
Azura will also resume sailing in December 2021, joining Britannia for the Caribbean season.
P&O Cruises president Paul Ludlow said: "Ventura’s international restart is the result of guest confidence in cruising and is the very latest stage of P&O Cruises sailing resumption as we work towards the return of our full fleet in spring 2022.
"We’re proud to have four ships sailing internationally this year giving our guests a greater choice of where and when they travel for winter sun."
Ventura’s 12-night holidays to Spain and Portugal this year start at £599 per person.
These will be followed by a 35-night cruise to the Caribbean, round-trip from Southampton, departing 3 January 2022 from £3,174 per person.
A second 35-night holiday to the Caribbean and US with Honduras, Belize and New Orleans among the 11 ports of call, departs 11 February 2022.
