The Costa Pacifica itinerary from Sept. 15 to Nov. 20 will substitute overnights at the two ports with an overnight stay at Istanbul and a one-day call in Volos, Greece.
And Costa Deliziosa's Sept. 5 cruise will replace the overnight call at Haifa with an overnight stay at Istanbul and one day in Volos.
Costa said it will continue to closely monitor the situation in Israel and nearby areas.