The move comes following the launch of Arvia last month, ahead of its winter deployment in the Caribbean before it repositions to the Mediterranean in the summer.
P&O will offer a new 13-night Mediterranean cruise onboard the new vessel from £849pp, departing Southampton on 14 October, calling in Lisbon, Malaga, Barcelona and Seville.
The line will also offer a 14-night transatlantic fly-cruise on Arvia from £999pp. Departing 27 October from Southampton, the sailing will call in Gran Canaria, Tortola, Basseterre, Fort de France and Bridgetown.