In 1983 Cunard bought Norwegian American Cruises and their popular ultra deluxe ships Sagafjord (1965) and Vistafjord (1973). Vistafjord kept her name and gray hull until 1999, when she was renamed Caronia and her hull was repainted black. She remained with Cunard until 2005.

Today Vistafjord is Saga Cruises' Saga Ruby.