A first Alaska cruise comes down to five decisions: round trip or one-way, cruise only or a cruisetour, which glacier your itinerary visits, which shore excursions to book early, and which documents you need for any stop in Canada. Get those right and the packing is the easy part.
Every rule and figure below comes from the cruise lines' own pages, read on October 9, 2026: Princess, Holland America, Royal Caribbean, Norwegian, Celebrity, Carnival and Disney. Where a line says something specific, we name the line, because their rules and promises differ.
Round Trip or One-Way
This is the first fork, and it decides your flights. Royal Caribbean's planning guide says round trips from Seattle or Vancouver keep the logistics simple: fly in, sail and fly home. One-way routes, it says, suit travelers who want to add rail trips, lodge stays or other time around the state.
Princess draws the same line. Its Alaska FAQ says a round trip typically leaves from and returns to Seattle, Vancouver or San Francisco and visits Inside Passage ports, while a one-way cruise runs between Vancouver and Whittier and opens the door to land travel into Denali. Norwegian also sells one-way sailings from Vancouver or Whittier, and Holland America's Alaska cruises depart from Seattle, Vancouver or Whittier, with San Diego added in 2028.
On a one-way sailing you fly into one city and home from another, so price both flights before you compare fares. As for length, Royal Caribbean says seven nights suits most travelers. Norwegian says its Alaska cruises usually run 7 to 10 days, with its 9- and 10-day sailings adding ports like Sitka or Icy Strait Point.
Cruise Only or a Cruisetour
A cruisetour adds a guided land trip, usually into Denali National Park, before or after the cruise. Royal Caribbean frames the choice this way: cruise only if you're happiest sailing port to port in about a week, and a cruisetour if you've always wanted to see Alaska beyond the shoreline and don't mind a few extra travel days.
The lines package the land part differently. Holland America's cruisetours run 9 to 17 days, and it says every one includes one to three nights at its own Holland America Denali Lodge plus a complimentary tour of Denali National Park. Its Denali and Yukon itineraries add two nights in Dawson City, Yukon, with a local tour director.
Royal Caribbean's Alaska page pairs a 7-night cruise with a 2- to 6-night land journey into Denali, and the line calls a ride on its glass-domed Wilderness Express railcar a highlight of many of its cruisetours. Norwegian's cruisetours run up to 16 days, with hotels, transportation, select meals and guided experiences included, either northbound from Vancouver or southbound from Fairbanks. Celebrity says every one of its cruisetours includes the Wilderness Express train and lodge stays.
Princess runs five of its own wilderness lodges and its own glass-domed railcars, and we cover how its cruisetours work in our guide to whether Princess is the right cruise line for Alaska. If you have a week, a round trip keeps things simple. If Denali is the point and you'd rather not plan the land half yourself, look at a cruisetour.
Know Which Glacier Day You're Getting
Norwegian says its 7-day Alaska itineraries typically include at least one glacier viewing day. Which glacier depends on the route: the lines' pages name Glacier Bay, Hubbard Glacier, and Endicott Arm and Dawes Glacier, among others. Read the itinerary for the name before you book.
Glacier Bay is a national park, and Holland America and Princess both say park rangers come aboard. Holland America says it spends a full day cruising Glacier Bay, with National Park Service rangers and Huna Tlingit cultural ambassadors on board. Celebrity's Endicott Arm sailings head up the 30-mile fjord to Dawes Glacier, which it describes as a 600-foot-tall wall of ice.
Holland America puts a guarantee on it. Under its Glacier Guarantee, if you don't visit a glacier on your Alaska cruise or cruisetour, you get a future cruise credit equal to 15% of your cruise fare. The guarantee excludes the Yukon cruisetours that don't include a glacier experience: Y3C, Y4C, Y5C and Y6C.
On the day itself, dress for the deck. Holland America's packing guide says wind on open decks often makes it feel colder than expected, and it recommends a warm hat for glacier days. Disney says UV rays reflect off glaciers, so it recommends sunglasses, sunscreen and a hat.
Book the Excursions That Sell Out First
Royal Caribbean's planning guide says to pre-book your key excursions, since popular glacier and wildlife days tend to sell out early. Its budgeting advice for first-timers is to go modest on the cabin and generous on the experience, weighing a cabin upgrade against flightseeing, wildlife days and extra time in port.
Weather matters most for anything that flies. Royal Caribbean says most Alaska excursions, including hiking, kayaking and whale watching, run in all conditions, and that flightseeing is the exception because landing needs clearer visibility. In Juneau, it says, mist and cloud around the Mendenhall Glacier may ground helicopter glacier landings.
Princess says that when you book a shore excursion through Princess, the ship won't leave without you. On Holland America's tours, you don't need to pack technical gear: it says they provide equipment like boots, helmets and waterproof gear for glacier walks.
Passports and the Canada Stop
Disney's Alaska sailings depart from Vancouver, and Carnival's Alaska ports include Victoria and Prince Rupert in British Columbia, so cross-border document rules apply to more Alaska itineraries than the name suggests. Here's what the lines say U.S. citizens need:
- Holland America recommends a passport valid for at least six months beyond the end of your trip. U.S. and Canadian citizens 16 and older can instead show another WHTI-compliant document, such as a passport card or an enhanced driver's license, but Holland America says those two are valid for land and sea crossings only. It adds that a Real ID driver's license doesn't qualify, and that when minors travel with only one adult, everyone in the party must carry a valid passport.
- Disney, for its Vancouver sailings, requires an original valid U.S. passport for U.S. citizens flying to or from Canada. By land or sea, it accepts a passport, a passport card or a NEXUS or FAST card, and children 15 and younger can also use an original state-issued birth certificate. Disney says hospital-issued birth certificates aren't acceptable.
- Norwegian says U.S. citizens sailing to Alaska from a U.S. or Canadian port must carry a valid passport or proof of citizenship.
- Celebrity calls a passport the best travel document and says yours shouldn't expire for six months after your cruise ends.
Round trips from a U.S. port such as Seattle work differently. Holland America says U.S. citizens on a closed-loop cruise, one that starts and ends at the same U.S. port, can sail with a U.S. government-issued birth certificate plus a government-issued photo ID, though it still calls a passport the preferred document.
The air rule matters most on a one-way cruise or if you fly into Vancouver. Holland America says passports are required for all international air travel to and from the U.S., including Canada. It gives a second reason to carry one: a passport lets you fly to meet the ship if you miss embarkation, or fly home if you have to leave mid-cruise in an emergency.
One more check. Holland America says the name on your travel documents must match your cruise documents, and Princess asks you to enter your name in its app exactly as it appears in your passport.
Expect Every Kind of Weather in One Day
Princess's Alaska FAQ says to expect cool mornings, warmer afternoons and the occasional drizzle. Holland America says to pack for temperatures from 30 to 80 degrees Fahrenheit, and Carnival says that even in the mild summer season you should still pack a sweater.
The ports differ, too. Royal Caribbean's weather guide says Ketchikan gets more than 150 inches of rain a year and calls it Alaska's rainiest city, while Skagway runs drier and is the most weather-reliable port for excursions. It calls August the wettest month of the cruise season. Royal Caribbean says the Inside Passage, the primary sailing route for Alaska cruises, keeps seas remarkably calm throughout the season.
To pick a month, our guide to the best time to cruise Alaska compares the 2027 schedules month by month.
What the Lines Tell You to Pack
Princess, Royal Caribbean, Holland America, Celebrity and Disney all tell you to pack layers. Holland America says to leave heavy-duty winter coats at home, though it adds that a heavier jacket becomes most useful by September. The specifics they name:
- Three layers: Royal Caribbean suggests a breathable base, a warm mid-layer and a windbreaker shell. Holland America says a fleece mid-layer will probably be your most-used item.
- Waterproof shoes, plus a spare pair: Holland America recommends two pairs, since wet shoes take time to dry in Alaska's humid coastal air.
- Binoculars: Princess, Holland America, Celebrity and Disney all name them.
- A sleep mask: Holland America suggests one for the long summer daylight, along with bug spray for coastal and forest areas.
- A swimsuit: Celebrity and Holland America both point to heated pools and hot tubs on board.
- Evening clothes: Holland America says to expect smart casual most nights, plus about two formal evenings a week.
Our Alaska cruise packing list goes item by item and by season.
When to Book and What to Budget
Princess and Royal Caribbean both say to book 6 to 12 months ahead. Princess adds that some dates and room categories sell out quickly, and that booking early matters especially on popular cruisetours and Glacier Bay sailings.
Budget beyond the fare. Royal Caribbean's guide lists flights to and from the ship, at least one pre-cruise hotel night, transfers, shore excursions, gratuities, drink packages and specialty dining. For what the fares themselves run by line, ship and month, see how much an Alaska cruise costs.
Where to Start
Start with the route. If you have a week and want simple flights, book a round trip from Seattle or Vancouver and check the itinerary for the glacier you'll see. If Denali matters to you, look at a cruisetour and price the flights into one city and home from another.
Then check your passport against your sailing date before you pay a deposit. Disney says guests without proper documentation will be denied boarding, and Holland America and Celebrity both recommend a passport valid for six months after the trip. Once that's settled, book the glacier and wildlife excursions you care about most.
