How to Track a Cruise Ship Live

Q: Why does the cruise ship show an old position?

AIS reception is strongest within tens of miles of coasts. On open-ocean legs a ship can go hours without being heard by a receiver — the tracker then shows the last known position with its age. This is normal; the ship reappears as it approaches land.

Q: Can I see when the cruise ship arrives at the next port?

VesselFlow Pro shows the voyage view: departure port, destination, progress along the route, and a live ETA countdown in your local time or UTC. The free tier always shows live position, speed and heading.

Q: Is it safe to share a ship-tracking link with family?

Yes — AIS positions are public information broadcast by the ship itself. VesselFlow's share feature sends a link that opens the vessel directly in the recipient's app, or a web page if they don't have it installed.

Someone you love is on a ship somewhere between here and the horizon. Here's how to watch their voyage from your phone — and how to not panic during the mid-ocean quiet spells that are completely normal.

Find the ship in under a minute

Get the exact ship name from the booking confirmation — cruise lines reuse fleet prefixes, so “Wonder of the Seas” matters, not just “Royal Caribbean.”
Open VesselFlow and search the name. Cruise ships are in the blue Passenger category.
Tap the result — the map flies to the ship and shows its live position, speed and heading.
Star it. For the rest of the cruise it's one tap away, on all your devices.

What you'll see day to day

In port: the ship sits at the pier, speed near zero. Port days are the most fun to watch — you can literally see when they set sail again.
Coastal sailing: constant updates. Cruise ships hug coasts and islands far more than people expect, so most itineraries stay in excellent AIS coverage.
Sea days: the ship cruises at 18–22 knots. With VesselFlow Pro, the voyage view adds the destination, progress bar and a live ETA countdown — the answer to “when do they get to Cozumel?” without doing math.

If the position looks old, don't worry. AIS receivers are shore-based and reach tens of miles out; on open-ocean legs (transatlantic crossings, Hawaii runs) the ship can go quiet for hours. VesselFlow shows how old each fix is instead of pretending it's current — the ship reappears as it nears land. A stale dot means a coverage gap, not trouble. More in our disappearing-ships guide.

Share the voyage with the rest of the family

Tap share on the vessel to send a link. Anyone with VesselFlow lands directly on the ship in their own app; anyone without it gets a web page. One person finds the ship, the whole family follows the cruise.

A few cruise-tracking niceties

ETA in your time or theirs: VesselFlow can show arrival times in your local time zone or UTC — useful when the ship is five time zones away.
Retrace the trip (Pro): the recent-track view draws the route actually sailed — a lovely way to see the whole itinerary take shape.
No account needed: nothing to sign up for; your starred ships sync via iCloud automatically.

Follow their voyage with VesselFlow

Live position, speed and voyage progress for every cruise ship. Free on iPhone & iPad.

Download on the App Store

FAQ

Why does the cruise ship show an old position?

Open-ocean AIS gaps — receivers are shore-based. The ship reappears as it nears land; the timestamp tells you how old the fix is.

Can I see when the cruise ship arrives at the next port?

Pro's voyage view shows destination, route progress and a live ETA countdown; free always shows live position and speed.

Is it safe to share a ship-tracking link with family?

Yes — AIS is public by design. Your link opens the vessel in their app, or a web page without it.