It comes after the US Centers for Disease Control and Prevention extended its no-sail order on Wednesday (30 September) by a month to the end of October.
"While operations from Miami and Port Canaveral in November and December are still not certain, Carnival is focusing its initial return to service from those two homeports, whenever that might occur," said the line in a statement issued on Thursday (1 October).
The line said it was continuing to work on protocols and procedures to allow for the resumption of cruise operations in a gradual, phased way, starting with those departing Miami and Port Canaveral.