Do you need a passport to cruise from Los Angeles or Long Beach?

On a round trip from Los Angeles or Long Beach, a U.S. citizen does not need a passport to board. The ship leaves a U.S. port and comes back to the same one, which U.S. Customs and Border Protection calls a closed-loop cruise. Federal rules accept a birth certificate with a government photo ID on those trips.

Two things change the picture. A one-way voyage is not a closed loop, so the lines ask for more. And a passport book is the document that gets you home by air if you have to leave the ship in Mexico.

Everything below is for U.S. citizens unless it says otherwise. Your cruise line decides whether you board, and we read the pages of Carnival, Princess, Royal Caribbean and Norwegian, so other lines need a direct check.

Do you need a passport to cruise from Los Angeles or Long Beach?

Not on a round trip to Mexico, Hawaii or Alaska, if you are a U.S. citizen sailing Carnival, Princess, Royal Caribbean or Norwegian. All four accept a birth certificate with a government photo ID on those trips, though Royal Caribbean says most, but not all, of its U.S. sailings do.

They still recommend a passport. Norwegian and Royal Caribbean say they strongly recommend one, and Princess says it highly recommends one. A round trip that calls in Panama is the exception, and it is covered below.

What is a closed-loop cruise?

A closed-loop cruise starts and ends at the same U.S. port on the same ship, and stays within the Western Hemisphere. That is the test in the State Department's passport rule, 22 CFR 53.2, and CBP applies the same one.

San Pedro to Ensenada and back qualifies. So does Long Beach to Cabo San Lucas and back, and a Hawaii round trip from San Pedro. CBP adds that you may still be required to show a passport to enter the countries your ship visits, and it tells you to check with your line.

What does each line accept on a round trip from Los Angeles?

All four take a passport book, a passport card or a birth certificate with photo ID, with these differences.

	Carnival	Princess	Royal Caribbean	Norwegian
Passport book	Yes	Yes	Yes	Yes
Passport card	Yes	Yes	Yes	Yes, with photo ID
Birth certificate plus photo ID	Yes, original or copy	Yes, original or certified copy, on listed round trips	Yes, original only	Yes, state-certified, no photocopies
Photo ID needed from age	16	16	16	16

Princess limits the birth certificate option to a list, and for Los Angeles that list names Alaska, Hawaii and Mexico round trips. It requires a passport book for the South Pacific and Tahiti.

Hospital certificates and baptismal papers do not count at Carnival, Royal Caribbean or Norwegian. Carnival also rejects a Certificate of Live Birth and a voter registration card, and it will not take a mobile or digital photo ID. All three reject Puerto Rico birth certificates issued before 1 July 2010.

Carnival says a guest without proper documents will not board and gets no refund.

Do you need a passport for a Mexico cruise from Los Angeles?

Not to board a round trip to Ensenada, Cabo San Lucas, Puerto Vallarta or Mazatlan. Princess names Mexico round trips from Los Angeles on its list, and Carnival's same-port rule covers round trips from Long Beach.

Princess adds a warning. It says it cannot guarantee that everyone in your party will be allowed ashore with just a birth certificate or another accepted document.

Why is a passport still the safer choice?

Because you need a passport book to fly home. CBP says U.S. citizens need a passport to enter the United States by air from Mexico, and Princess says the same for flights in either direction.

If you miss the ship in Cabo San Lucas, or a medical emergency takes you off it in Ensenada, a birth certificate will not get you on a plane. A passport card will not either, because CBP says cards are not accepted for international air travel. The same goes for an enhanced driver's license.

Princess gives another reason, which is keeping a party together if one person has to leave the ship outside the United States.

Do you need a passport for a Hawaii cruise from Los Angeles?

Not on a round trip, because the ship returns to the port it left. Princess lists Hawaii round trips from Los Angeles for its birth certificate option, and Carnival's same-port rule covers its round trips from Long Beach. The same passport advice holds, because the trip includes a foreign port. Compare them in our Hawaii guide.

Why do Hawaii cruises from Los Angeles stop in Mexico?

Because of the Passenger Vessel Services Act. It bars ships that are not qualified for U.S. coastwise trade from carrying passengers between U.S. ports. CBP's own example of a violation is a ship that takes passengers from Los Angeles to several Hawaiian Islands, lets them go ashore, and brings them back to Los Angeles.

A foreign stop fixes that. The regulation, 19 CFR 4.80a, targets a voyage solely to U.S. ports. Once a voyage includes a nearby foreign port, it is a violation only if you get off at a different U.S. port from the one you boarded at. CBP names Ensenada as a nearby foreign port.

Princess described its Hawaii cruises from Los Angeles in 2022 as 15 and 16 day trips with stops in Hilo, Honolulu, Kauai, Maui and Ensenada. On 1 November 2026 every Hawaii sailing on our schedule was a round trip with a call at Ensenada.

Can you leave a Hawaii cruise early in Honolulu?

Not without risking a fine. Getting off in Honolulu after boarding in Los Angeles means leaving at a different U.S. port. CBP gives a matching example of a violation, a ship that sails from Los Angeles to Hawaii and Ensenada, then lets passengers off in San Diego.

Carnival's ticket contract says you must complete the voyage and get off at the port where you boarded, or face a possible fine. Norwegian allows it only in emergencies, and its boarding page warned on 1 November 2026 of a fine starting at $941 per person.

Do you need a passport for a one-way cruise from Los Angeles?

Plan on one. A one-way voyage does not return to the same port, so it is not a closed loop, and the birth certificate option goes away. That is the difference between a Hawaii round trip and an Alaska or Panama Canal one-way. On 1 November 2026 every Panama Canal sailing on our schedule was one-way, most of them ending in Florida, and every one-way Alaska sailing ended in Vancouver.

Voyage	What to bring
Round trip to Alaska	Same as Mexico. Princess lists Alaska round trips from Los Angeles
One-way to Alaska or along the Pacific Coast, ending in Vancouver	Passport book. Canada's border agency recommends a passport, and CBP says you need one to fly home from Canada
One-way between two U.S. ports	Passport. Norwegian requires one, Carnival requires a book or card valid six months past the trip, and Royal Caribbean lists a book only
Panama Canal, ending in Florida, New York, Boston or Panama City	Passport book. Princess requires one for partial and full transits, and Norwegian for all Panama Canal sailings
One-way ending overseas, such as Sydney, Auckland or Papeete	Passport book. Princess requires one on these routes, so check the entry rules of the country where you get off

Panama applies to round trips too. Royal Caribbean requires a passport book on round trips that include Panama, and Norwegian says no passport cards or birth certificates on sailings that visit Panamanian ports. Carnival requires a book valid six months past the trip to go ashore in Panama, and guests with a passport card stay on board.

The schedule has 7 Alaska and 25 Panama Canal sailings. Read where yours ends, and see our Alaska and Panama Canal guides.

Can you use a REAL ID on a cruise from Los Angeles?

Only as your photo ID. Carnival says a REAL ID cannot be used as proof of citizenship, and Princess says it is not the same as an enhanced driver's license.

Enhanced licenses come from Michigan, Minnesota, New York, Vermont and Washington, according to Carnival and Norwegian. California is not on that list, so a California license of either kind still needs a birth certificate alongside it.

You may want a REAL ID for the flight, though. The TSA says travelers must be REAL ID compliant to board domestic flights, and that a passport can be used instead. Its page warned on 1 November 2026 that travelers without an acceptable ID must pay a $45 fee.

What documents do children need on a cruise from Los Angeles?

A U.S. citizen under 16 on a closed-loop cruise needs only proof of citizenship, such as an original or copy of a birth certificate, under 22 CFR 53.2. Norwegian and Royal Caribbean say that age group needs no photo ID.

Three line rules catch families out:

• Princess requires a passport for all guests in a travel party when minors travel with only one adult, who must be 21 or older.
• Royal Caribbean requires a notarized consent form, shown at check-in by the accompanying adult, for guests 17 and under traveling without a legal guardian.
• Carnival strongly recommends an original signed letter from any parent who is not sailing.

CBP also lets children under 19 in school, religious, cultural or sports groups use a birth certificate at sea, with a signed letter from the group.

What do green card holders and other non-citizens need?

Plan on a valid passport from your country of citizenship and, if you live in the United States, your original green card.

• Norwegian. Non-U.S. citizens need a passport that does not expire within six months of the cruise's return. It says green card holders without both the card and a valid passport at check-in will be denied boarding.
• Royal Caribbean. It asks for the physical card, with no photocopies, and a valid passport from your country of citizenship. On one-way sailings the passport must be valid at least six months after the cruise.
• Princess. U.S. permanent residents show a Permanent Resident Card at check-in, or one of the alternatives it lists.

CBP says a lawful permanent resident needs a valid card to return, and that a passport is not required. The lines can ask for more than CBP does, so follow your line's rule.

Canada's border agency says a U.S. permanent resident arriving by water directly from the United States shows the card and does not need to present a passport. Royal Caribbean warns that a Canadian port call, as on Alaska sailings, may require a Canadian visitor's visa. Visa rules depend on your nationality, and Carnival tells guests to check with a travel agent or government authority for each port.

Does the name on your documents have to match your booking?

Yes. Royal Caribbean says the name on all documents and the reservation must match. Carnival asks for the paper that links them, original or a clear copy, and says failing to bring it could mean denial of boarding.

What should you do before you leave home?

Check your line's document page against your booking a few weeks out, because the line decides at the terminal. Keep your originals in your carry-on, not your checked bag. For the rest of the boarding day, see the first-time cruiser guide.