The failed coup in Turkey has caused a number of cruise lines to divert vessels.
Royal Caribbean (RCCL), Carnival and Celebrity Cruises are among those changing itineraries following an army faction's bid to oust president Recep Tayyip Erdogan over the weekend.
The trio have replaced calls at Kusadasi with stops in Greece or days at sea, the Cruise Critic website reported.
Celebrity has also swapped Bodrum with Sicily.
Holland America, Princess Cruises, Cunard, Seabourn, Silversea, Windstar, Star Clippers and TUI Cruises also have calls scheduled in Turkey.
Carnival said: "We will continue to monitor the situation in Turkey in conjunction with global security experts and make a determination with respect to Carnival Vista's future calls in Kusadasi (beyond July 20) in the coming days."
Two Celestyal Cruises ships did not call at Kusadasi and Cesme on 16, 17 and 18 July.
A Holland America vessel will call at Kusadasi on 23 July, but the company will assess trips on a case-by-case basis.
