A round-trip (or “closed-loop”) cruise starts and ends in the same port. A one-way cruise starts in one port and ends in another. Each has advantages.
| Round-trip | One-way | |
|---|---|---|
| Getting there | Same airport both ways, or drive and park | Fly into one city, home from another |
| Variety | Ports cluster around one region | Covers more distance; may cross a sea or continent |
| Typical examples | Caribbean from Florida; Inside Passage from Seattle | Gulf of Alaska; transatlantic; Panama Canal; many European routes |
| Best for | Simplicity and driving to the port | Seeing more ground and adding land stays |
Why US Itineraries Look the Way They Do
Most big cruise ships fly the flag of a country other than the United States. US cabotage law, the Passenger Vessel Services Act, generally prevents foreign-flagged ships from carrying passengers only between US ports. That shapes itineraries in recognizable ways:
- Round-trip Alaska cruises from Seattle include a call in Canada, often Victoria, British Columbia.
- Many one-way Alaska cruises start or end in Vancouver rather than a US port.
- Round-trip cruises from California typically call in Mexico.
- Cruises within Hawaii by a foreign-flagged ship usually begin or end outside the state or include a foreign call; a US-flagged ship can sail inter-island round trips.
If an itinerary seems to take an odd detour, this rule is often the reason. If the ship can’t make a required foreign call, there can be consequences; your cruise contract explains them.
Making One-Way Cruises Easy
- Search multi-city or open-jaw flights; our sister site Airfares for Less can help.
- Add a few days at the start or end — one-way cruises often begin or end in great cities.
- Check passport and entry rules at both ends.
- Repositioning cruises, when ships move between seasons, are one-way voyages that often include extra sea days.
Frequently Asked Questions
Why can’t I take a cruise from Seattle to Los Angeles?
Most large cruise ships are registered outside the US. Under US cabotage law (the Passenger Vessel Services Act), foreign-flagged ships generally can’t carry passengers solely between two US ports. Itineraries are designed around this rule, which is why most West Coast and Alaska cruises call in Canada or Mexico.
Are one-way cruises more expensive?
Not necessarily for the cruise itself, but flights usually cost more because you fly into one city and home from another.
Repositioning Cruises
Twice a year many ships move between seasonal regions — from Alaska to Asia or Hawaii, or from the Caribbean to Europe. These one-way repositioning voyages often have more sea days than usual and unusual ports, which suits travelers who love the ship itself.
Round Trip or One Way?
Our cruise advisors at Mister Cruise will compare both kinds of itinerary for your dates, including what the flights would look like.
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