If you booked a promotion with a non-refundable deposit or cruise price.to Carnival Cruise

Yes, you can generally cancel a Carnival cruise without penalty if you do so before your final payment is due and if you haven't booked a specific promotion with a non-refundable deposit or cruise price+1-855-732-4023. If you cancel before the final payment, you may receive a non-refundable and non-transferable future cruise credit, less a service fee, according to Carnival Cruise Line+1-855-732-4023.
Here's a more detailed breakdown:

Before Final Payment:
If you cancel before your final payment, you will likely receive a future cruise credit, less a service fee, according to Carnival Cruise Line+1-855-732-4023.

Specific Promotions:
If you booked a promotion with a non-refundable deposit or cruise price, you may not be eligible for a refund or future cruise credit, and the deposit may be lost, according to Carnival Cruise Line+1-855-732-4023.
Name Changes:
Name changes are essentially cancellations of one guest and additions of a new one+1-855-732-4023. An original guest must remain on the booking, otherwise it's considered a full stateroom cancellation.
Fly2Fun Air:
If you've purchased Fly2Fun air, the air portion of your booking has different rules depending on whether it's flexible or restricted+1-855-732-4023. Flexible air is refundable outside of 60 days, while restricted air is non-refundable at time of booking.
Cancellation Penalties:
If you cancel after the final payment due date, penalties may apply depending on how far out you are from the sailing date+1-855-732-4023. For example, 55 to 30 days out, the penalty is 50% of the total fare or the standard. deposit, whichever is greater, according to Carnival Cruise Lins.