5.4 Cancelling or Changing a Reservation
You may cancel your reservation for all U.S. destinations, one time, at no cost when changes are made at least 21 days in advance. All non-U.S. locations need a minimum of 45 days to avoid penalties. Cruises need a minimum of 45 days to avoid the rebooking penalty. You may incur a fee if additional cancellations or date changes are made.