First thing to do then, is to contact your agent or Princess, quote your reference number and find out who your carrier will be. If it's Miami it could well be a scheduled airline in which case your allowance will be high compared to the chartered airlines. But as I say first find out who your carrier is and get a flight number with times etc. Regards. ......Neil.
What airline - and are you flying Economy class or up near the pilot somewhere......if you had supplied this information we could give you the answers....
If your flying into miami to meet the caribbean princess you should be on either virgin or ba and the luggage allowance is 64 kg each have a great cruise .