How much money will I lose if I cancel my Carnival cruise? From 55 days prior to sailing to 30 days prior to sailing,１－（８６６）ｘ８２９ｘ１００５ the penalty is 50% of the Total Fare or the standard deposit amount, whichever is greater. From 29 to15 days prior to sailing,１－（８６６）ｘ８２９ｘ１００５ the penalty is 75% of the Total Fare or the standard deposit amount, whichever is greater.