Internet onboard the cruise ship

Staying connected during a sea cruise has become much easier. Modern cruise ships use satellite internet, and many major cruise companies have already switched to high-speed next-generation systems, including Starlink.

However, internet at sea is still different from home or mobile. On board, you usually need a separate Wi-Fi package, while a standard SIM card or a tourist eSIM works only where a land-based network is available: in ports and near the coastline.

Let’s figure out which option to choose and how to avoid an unexpected mobile roaming bill.

How does the internet work on a cruise ship?

When the liner is in open waters, access to the internet is mainly provided via a satellite channel.

Many modern liners use low-Earth-orbit satellite systems, including Starlink. Thanks to this, the quality of internet access on cruises has improved significantly: depending on the company and the package you purchase, you can not only use messengers and a browser, but also make video calls or watch streaming video.

At the same time, satellite internet cannot be considered as stable as fiber optic service at home. Speed can be affected by:

• the cruising area;

• weather conditions;

• the ship’s position;

• network load;

• the selected Wi-Fi plan;

• limitations of a specific cruise company.

Therefore, for work or important video conferences, it’s advisable to have a backup connection option.

Wi-Fi on board: what cruise companies offer

Conditions vary depending on the company, the ship, and the specific cruise.

Package names, prices, number of devices, and included services may change, so before the cruise we recommend checking the terms specifically for your booking.

Is there enough internet for WhatsApp, Telegram, and Viber?

For text messages, satellite Wi-Fi is usually enough.

Photos, voice messages, and video require more data traffic and may be limited by the cheapest packages.

Pay particular attention to the tariff description. For example, a social media or messenger package does not necessarily allow using a regular browser, VPN, YouTube, or Netflix.

Can you watch Netflix or YouTube?

Yes - but only if your package supports streaming.

On many modern liners, it’s technically possible to watch videos and hold video conferences. However, the cheapest packages often specifically block streaming video.

If YouTube, Netflix, Teams, Zoom, or video calls are important to you, look for a package in the Premium, Streaming, Browse & Stream category or a similar one.

Mobile service on the open sea: be careful

This is one of the most important points.

When the liner pulls far away from the shore, the operator’s regular terrestrial network disappears. On some ships, the phone may then automatically connect to a special maritime mobile network via satellite.

Names such as these may appear on the screen:

• Cellular at Sea;

• Maritime;

• Telenor Maritime;

• MCP;

• or a digital network code.

Such a connection may be billed completely differently than regular European roaming. Data transmission, calls, and even background smartphone processes can lead to significant charges.

How to avoid accidental maritime roaming

After the liner leaves the port, the simplest and safest option:

1. enable airplane mode;

2. turn on Wi-Fi separately;

3. connect to the ship’s Wi-Fi;

4. leave mobile data transmission turned off.

This applies to both your main SIM and your eSIM: before leaving port, turn off mobile data and roaming on both.

This way, the phone won’t try to use the expensive maritime mobile network unnoticed.

What should I do in the ports?

Here is where it’s most cost-effective to use mobile internet.

After arriving at the port, your smartphone can connect to the local land-based mobile network.

You can use:

• roaming from your home carrier;

• a local SIM card;

• a tourist eSIM;

• Wi-Fi in a café, terminal, or other public place.

For a cruise that visits several countries, a regional eSIM may be especially convenient.

eSIM for a cruise: why we recommend Airalo

For using mobile internet during port calls, we recommend Airalo.

An eSIM can be installed on a compatible smartphone before the trip, and after arriving in the desired country, your phone will connect to an available local mobile network.

This is especially convenient for Mediterranean cruises, where, in one voyage, a liner can visit Italy, France, Spain, Greece, Croatia, Turkey, and other countries.

Airalo offers:

• eSIM for individual countries;

• regional eSIM;

• global eSIM;

• plans with different data volumes and validity periods.

Before purchasing, be sure to check whether all countries of your cruise itinerary are included in the coverage of the specific plan.

Discount for Cruise-Life.PRO readers

We use Airalo for mobile internet while traveling.

Use the referral code KONSTA466 to get €3 off your first eSIM.

Airalo: https://airalo.go.link/kqytW

Code: KONSTA466

Important: eSIM does not replace the ship’s Wi-Fi

Airalo and other travel eSIMs use mobile networks of available operators.

Therefore, an eSIM works well:

• in ports;

• on shore excursions;

• in cities;

• during transfers;

• before boarding and after the cruise ends.

But in open sea, where there is no coverage from terrestrial mobile networks, it is not a substitute for the liner’s satellite Wi-Fi.

The optimal setup for most travelers:

Ship Wi-Fi at sea + eSIM in ports.

Which option should I choose?

If you only need messages

The cheapest Wi-Fi package or a package for messengers is often enough.

In ports, you can use eSIM.

If you use Instagram and social media actively

Consider the Social option or a full internet package.

Photos and especially videos are better uploaded in port via eSIM so you don’t overload the satellite channel.

If you need to work during the cruise

Choose a package that supports:

• full web access;

• video calls;

• VPN if you need it;

• sufficient speed for file transfer.

Use an eSIM as a backup on days when the ship is in port.

Don’t schedule a critical online meeting for a day when satellite Wi-Fi at sea would be your only connection.

If you want to disconnect from the internet as much as possible

You can simply skip buying a full Wi-Fi package and use mobile internet via eSIM only while the ship is docked in ports.

For many Mediterranean itineraries, this is more than enough.

How to save mobile data traffic

Before your cruise, we recommend:

• download offline maps of the required cities;

• download music, movies, and TV series;

• turn off automatic photo backup;

• disable automatic app updates over mobile internet;

• turn off automatic video downloads in Telegram, WhatsApp, and other messengers;

• download Google Maps or other maps of the required ports;

• install the cruise company app;

• install and activate eSIM according to the instructions before the trip.

Do you need internet for the cruise company app?

In many cases, no.

Cruise line apps may work through the ship’s internal Wi-Fi network without purchasing full internet access.

Through the app, depending on the company, you can view:

• the day’s schedule;

• restaurants;

• bookings;

• excursions;

• onboard account;

• a ship map;

• messages and other features.

Therefore, connecting to the ship’s Wi-Fi does not always mean you need to buy an internet access package.

Our best option for a cruise

For most travelers, Cruise-Life.PRO recommends combining two ways to stay connected:

At sea: the cruise company’s Wi-Fi if you truly need constant internet access.

In ports: mobile internet via Airalo or your carrier’s roaming.

This helps you avoid overpaying for the most expensive onboard packages and at the same time stay connected throughout your trip.

And most importantly: after the ship leaves port, keep mobile roaming under control so that your phone doesn’t accidentally connect to an expensive maritime network.