The international allowance (and the number of checked bags) will depend on your airline and class of travel. So when you book international flights to your departure port, check that airline’s allowance. Some only permit 15kg per person. It’s usually possible to buy an extra 5 kilograms or a bag, but be sure to do this online for both the outward and return flights before you travel, and keep a copy of the confirmation number and/or email.Please be aware that charter flights included in your cruise package are always economy class with a limited baggage allowance of 20kg. International business class passengers with 2 pieces of a 32 kg allowance or one piece of up to 40kg will have to pay for any luggage excess over 20kg.