The fastest way to book is through Carnival's website or by phone

You can book a Carnival cruise directly through Carnival.com, by calling 1-800-CARNIVAL, or through a travel agent. The website route is fastest if you know your travel dates and cabin preference. You will need a valid passport (or passport card for Caribbean cruises), the names of all passengers, and a credit card to hold the reservation. Most bookings take 10 to 15 minutes online.

If you call, a Carnival agent will walk you through ship selection, cabin type, and onboard spending options. Travel agents can sometimes find promotions or bundle deals that are not advertised on the main site, though you pay the same final price either way. The choice between these three routes comes down to whether you want to move fast on your own or have someone else handle the details.

Key Takeaways

  • Book through Carnival.com, call 1-800-CARNIVAL, or use a travel agent — all three lead to the same price and confirmation.
  • You need a valid passport, the full names of all passengers, and a credit card before you start the booking process.
  • Choose your ship, sailing date, and cabin type during booking, then select your dining package and onboard spending plan.
  • A deposit of 10 to 25 percent of the cruise fare is due at booking, with the balance due 75 to 120 days before departure depending on your booking date.
  • After booking, you will receive a confirmation number and can manage your reservation through Carnival's website or mobile app.

Selecting your ship, date, and cabin type

Carnival operates over 20 ships sailing to the Caribbean, Mexico, Alaska, and other destinations. Each ship has a different size, onboard layout, and itinerary. Start by choosing your departure port (Miami, Galveston, New Orleans, and others), then pick your travel dates. Carnival's website shows which ships sail from each port and when.

Next, select your cabin type. Inside cabins (no window) are the cheapest. Oceanview cabins have a window or porthole. Balcony cabins have a private outdoor space. Suite cabins offer more room, priority boarding, and some onboard perks. The price difference between inside and balcony can be $200 to $500 per person for a week-long cruise, depending on the ship and season.

Carnival also shows you the exact cabin location on a deck plan before you book. A cabin near the engine room or elevator will be noisier than one in the middle of the ship. If cabin location matters to you, spend a few minutes reviewing the deck plan — you can change your selection during booking.

Understanding deposit and payment schedules

When you book, Carnival requires a deposit to hold your reservation. The deposit is usually 10 to 25 percent of the total cruise fare, depending on how far away your sailing date is. If you book more than 120 days before departure, the deposit is typically 10 percent. If you book closer to the date, the deposit rises to 15 or 25 percent.

The remaining balance is due 75 to 120 days before your departure date. Carnival will send you a payment reminder email with the exact due date. If you miss the important date, Carnival may cancel your reservation and keep your deposit. You can pay by credit card, debit card, or bank transfer through your online account.

Carnival also offers a payment plan option that lets you split the remaining balance into monthly installments. This option is available if you book far enough in advance — usually at least 120 days before departure. The payment plan has no interest, but you must make each payment on time or your reservation will be cancelled.

Choosing dining and onboard spending options

During or after booking, you will select a dining package. The standard package includes meals in the main dining room and buffet, plus basic beverages (water, coffee, tea, lemonade). Specialty restaurants on the ship charge extra — typically $15 to $30 per person per meal for steakhouse or Italian dining.

Carnival also sells beverage packages that add alcoholic drinks, specialty coffees, and smoothies. A daily beverage package costs roughly $15 to $18 per person per day if you buy it before your cruise, or more if you buy it onboard. If you do not drink alcohol or specialty beverages, the standard package is sufficient.

You can also pre-purchase onboard credits, which work like gift cards for restaurants, bars, spa services, and activities. Pre-purchasing saves about 5 to 10 percent compared to paying onboard. This step is optional — you can wait and pay for extras once you are on the ship.

Completing your reservation and receiving confirmation

After you select your cabin, dining package, and any add-ons, you will enter your payment information and confirm your booking. Carnival will send you a confirmation email with your reservation number, sailing date, cabin number, and a link to manage your reservation online.

Save this confirmation number — you will need it to check in at the port, manage your account, and contact Carnival if you have questions. You can log into Carnival.com or the Carnival Hub mobile app using your confirmation number and last name to view your reservation, add passengers, purchase excursions, or change your dining selections.

Carnival will also send you pre-cruise documents about 30 days before your sailing date. These include your boarding pass, cabin assignment, dining times, and information about what to bring. Read these carefully, as they contain important details about check-in procedures and what items are prohibited onboard.

Managing your reservation before departure

Once you have booked, you can make changes through your online account. You can add or remove passengers (though removing a passenger may result in a fee), change your cabin type, add excursions at ports, or purchase additional onboard credits. Some changes, like moving to a different cabin category, may cost extra or result in a refund depending on price differences.

If you need to cancel, Carnival's cancellation policy depends on how close you are to your sailing date. Cancellations made more than 75 days before departure usually result in a full refund. Cancellations made 75 to 14 days before departure result in a onboard credit equal to what you paid. Cancellations made 14 days or fewer before departure result in no refund. Travel insurance can cover cancellation fees if you purchase it within 14 days of your initial booking.

About two weeks before your cruise, log into your account and confirm all passenger names are spelled correctly, your dining preferences are set, and your payment is complete. Errors in passenger names can cause problems at check-in, so double-check this detail.

What to do at the port on departure day

Arrive at the port at least two to three hours before your scheduled departure time. Bring your confirmation number, a valid passport or passport card, and a government-issued photo ID. You will check in at the terminal, go through security screening, and board the ship.

Carnival will assign you a boarding time based on your cabin location and loyalty status. If you have booked a suite or are a repeat Carnival cruiser, you may board earlier. Check your pre-cruise documents for your assigned boarding time — arriving during your time slot moves the process faster.

Once onboard, you will receive your cabin key card, which also serves as your onboard payment method. You can link a credit card to your account so that meals, drinks, and purchases are charged to your card instead of requiring a separate payment at each location.

Frequently Asked Questions

Can I book a cruise without a passport?

For cruises to the Caribbean and Mexico, you can use a passport card or a Real ID-compliant driver's license if you are a U.S. citizen. For Alaska, Hawaii, and international cruises, you need a full passport. Check Carnival's website for the specific requirements of your itinerary, as rules vary by destination.

What is the cheapest time to book a Carnival cruise?

Prices are typically lowest 60 to 90 days before departure, when Carnival releases last-minute deals to fill remaining cabins. Booking far in advance (6 to 12 months ahead) can also yield lower prices if you are flexible with dates. Avoid booking during school holidays and summer months, when prices are highest.

Can I change my cabin after I book?

Yes, you can change your cabin type or location through your online account. If you upgrade to a more expensive cabin, you pay the difference. If you downgrade, you may receive a refund or onboard credit depending on Carnival's current pricing. Changes are subject to availability.

Do I need travel insurance when I book?

Travel insurance is optional but recommended if you are booking far in advance or have non-refundable flights to the port. Carnival's insurance covers cancellation fees, medical emergencies, and lost luggage. You must purchase it within 14 days of your initial booking to cover pre-existing conditions.

What happens if I miss my cruise departure?

If you miss your departure, Carnival will not refund your fare or allow you to board a later sailing. You forfeit the entire amount you paid. This is why arriving at the port early and confirming your travel plans well in advance is important. Travel insurance can cover this loss if you purchased it at booking.