Short answer
Sometimes. You can often add a traveler to an existing cruise booking, even close to sailing, but only if your cabin can hold another person, the ship has space, and the cruise line is still accepting changes. It usually means paying the fare that applies at that moment, plus taxes and fees. Policies differ by cruise line, so contact the line or your travel agent as early as you can.
What has to be true
- The cabin must allow another guest. Many cabins are built for two. A third or fourth guest is only possible in cabins with a sofa bed, pull-down bed or similar, and the cabin category must allow that many people.
- The ship must have space. Cruise ships have limits on how many people they can carry, including safety limits. Popular sailings and holiday periods can reach those limits well before sailing.
- The booking must still be open for changes. Cruise lines usually stop accepting changes at some point before sailing. Some sources describe cutoffs from a few days before sailing to a week or more, but this varies by line and fare.
- The fare allows it. Some promotional fares have restrictions. Ask how your fare treats additions.
Steps to request an addition
- Call the cruise line or your travel agent. Adding a guest usually cannot be done online or in an app, because staff have to check capacity.
- Give your booking number and ask whether the cabin and ship can take another person.
- Ask for the full price: fare, port charges, taxes, fees and gratuities for the added guest.
- Provide the new guest’s details (see below).
- Pay as instructed and request written confirmation.
- Make sure the new guest completes online check-in, if the cruise line requires it, and has the right documents.
What it costs
In many cases the added person pays the price available on the day, not the price you originally paid. That price could be higher than the fare you booked months ago. There may also be separate charges per person, such as port fees, taxes and daily gratuities. If the third or fourth person is a child, the fare may be lower, depending on the line and any promotion. Ask for the total before agreeing.
If your cabin only holds two, you may need to move to a larger category, which may cost more still.
Deadlines
The closer you get to sailing, the fewer options you tend to have. Ask the cruise line for the current cutoff for your sailing. Do not wait until the day of travel, and do not plan to bring someone to the pier without a reservation, since all guests need to be on the passenger list before boarding.
If your cabin is full
If your cabin cannot take another guest, consider:
- Booking a second cabin near yours. Ask to link the reservations so you can manage them together and dine together.
- Upgrading to a larger cabin or suite, if available.
- Waiting for cancellations. Cruise lines sometimes have cabins return to inventory. Our guide to finding unsold cruise cabins explains how that works.
- Booking a guarantee cabin if you are fine with the cruise line choosing the room. Read about guarantee cabins.
Documents
The new guest generally needs:
- Full legal name as it appears on their passport or ID
- Date of birth
- Citizenship
- Passport details, or the closed-loop documents if the cruise allows them
If your itinerary starts and ends in the same U.S. port, a U.S. citizen may be able to board with other documents instead of a passport. See cruising without a passport. Do not assume this applies to everyone, and check each traveler’s situation.
Replace versus add
If someone dropped out and you want to put a new person in their place, you are not adding a guest, you are swapping. That is handled differently and often costs less. Read our guide to changing a guest on a Carnival booking and the broader article on changing your cruise after booking with Carnival.
Things to avoid
- Do not assume a verbal agreement is enough. Get written confirmation.
- Do not delay while you wait for a lower price. Prices and availability can change quickly.
- Do not forget insurance. A late addition may be able to buy cover, but you should read what applies to a late purchase. See whether cruise travel insurance is worth it.