Royal Princess on Monday embarked from Vancouver, BC, for its 'Voyage of the Glaciers' Alaska season. Island Princess sailed April 27 from Port Everglades on a Panama Canal cruise.
And Crown Princess is set to depart Seattle May 7 for a summer of Alaska Inside Passage cruises.
Full fleet operational by September
The full 15-strong fleet should be carrying passengers on global itineraries by September.
The first Princess ships resumed sailing last July.