Costa Pacifica canceled stops in Israel for departures from Sept. 15 through Nov. 20 and instead will visit Istanbul in Turkey and Volos, Greece, according to Travel Pulse. Costa Deliziosa also will substitute Istanbul as well as Volos and Heraklion, Greece, on a Sept. 5 cruise.
Holland America, which has upcoming cruises to both Israeli port towns on the Rotterdam and Prinsendam in fall, said it hasn't taken action yet.
"Holland America Line is closely monitoring the recent unrest in Israel and the Gaza Strip," a spokesman wrote via email. "The next ports calls in the area take place in October of 2014. Should adjustments to upcoming itineraries be deemed necessary, the decision will be made closer to the call dates. The safety of our guests and crew is our top priority."