Best eSIM for Greece 2026: Airalo vs Lumbus, Prices Compared

The islands where your phone can leave Greece without you

The problem lives on two coastlines. In the east, a chain of islands runs down the Turkish shore: Lesbos, Chios and Samos, then the Dodecanese with Kos, Rhodes and the smaller islands around them. Samos is the tightest squeeze, less than two kilometres from Turkey across the strait at its closest point, and Kastellorizo, the most easterly Greek island of all, sits about two kilometres off the Turkish harbour town of Kaş. In the west, Corfu faces the Albanian coast across a channel that narrows to under two kilometres, and the east and north-east of the island, Corfu Town included, look straight at it.

Across open water, a mast on the far shore can easily outshout the nearest Greek one, and a phone left on automatic network selection simply joins whichever signal is strongest. It does not ask first. The usual first sign is a text from your home network welcoming you to Turkey or to Albania, which arrives while you are on a sunbed that has never left Greece.

This is not folklore. Traveller forums for Kos and Corfu carry years of posts from people woken in the night by a welcome-to-Turkey text, or whose phones flipped between the two countries all week without them moving, and consumer journalists in Britain have been warning holidaymakers about it for years.

• Lesbos, Chios and Samos: each a short crossing from the Turkish coast.
• Kos and Rhodes: the two busiest Dodecanese islands, with Turkey in view from the beach.
• Kastellorizo and the small islands in between: the closer the island, the more often it happens.
• Corfu: mostly along the east and north-east coast, facing Albania.
• At sea: anywhere between those coasts, which has its own section further down.

Who gets a bill, and who just loses signal

What an accidental crossing costs depends entirely on which line the phone was using at the time, and it splits three ways.

On a contract from an EU country, Greece is covered at home prices under the EU’s roam-like-at-home rules, so most EU visitors need nothing extra for Greece itself. Turkey and Albania are outside that zone. Talks to bring Albania and the rest of the Western Balkans into it were authorised in 2026, but it is not in yet, so a phone on a Turkish or Albanian mast is billed at whatever your operator charges outside the zone.

On a British contract, EU roaming is usually a daily charge or a paid add-on, and Turkey and Albania usually sit outside it at a higher rate. The details vary by operator and by tariff, so check your own network’s list by name rather than trusting the word Europe.

On a travel eSIM, the answer is different in kind. A Greece plan is prepaid and tied to its coverage list, so on a Turkish or Albanian network it simply has no data. It cannot run up a bill, because there is nothing to bill: the worst it can do is stop working until your phone is back on a Greek network. For anyone arriving from outside the EU, that makes a travel eSIM the safer line to have switched on along those coasts.

One catch applies to everyone. Turning off data roaming on your home line stops data charges, but calls and texts are billed separately, so a home line that wanders onto a Turkish network can still charge you for an incoming call. The fix in the next section covers that line too.

The free fix: choose a Greek network by hand

Whatever you buy, including nothing, the fix for these coasts costs nothing and takes two minutes: stop letting the phone choose. On an iPhone, open Settings, then Cellular (called Mobile Service on British iPhones), tap the line you are using, open Network Selection, switch Automatic off and pick a Greek network from the list. On Android the same switch sits in the SIM’s settings, usually labelled network operators or automatically select network. Do it for every line you keep switched on, because each line has its own setting.

The Greek networks are Cosmote, Vodafone and Nova. Nova is the network that used to be called Wind, and some phones may still show the old name. The Turkish networks you are likely to see are Turkcell, Türk Telekom and Vodafone. That last one is the trap: Vodafone runs a network on both sides of the water, so if it appears twice, check which country each entry belongs to before you tap it.

Manual selection stays on until you turn it off. Set it back to automatic before a deliberate crossing to Turkey or Albania, or the phone may sit there showing no signal, and set it back again when you leave those coasts, so the phone can move to whichever Greek network is strongest.

For your home line, if you are not using it for data at all, switch its data roaming off as well, and on the islands facing Turkey or Albania lock it to a Greek network too, or turn the line off on the days you do not need it.

• Every line that is switched on has its own manual setting.
• Greek networks: Cosmote, Vodafone, and Nova, which some phones still list as Wind.
• Vodafone exists on both sides of the water: check the country before you tap.
• Switch back to automatic before a deliberate crossing, and when you leave those coasts.

Day trips to Turkey: buy the Turkey plan before you board

Plenty of people cross on purpose. Boats run from Kos to Bodrum, from Samos to Kuşadası for Ephesus, from Rhodes to Marmaris and Fethiye, from Chios to Çeşme, from Lesbos to Ayvalık and from Kastellorizo to Kaş, and most of the short crossings are summer services that thin out or stop in winter. A Greece plan does not work on the Turkish side, so a day across the water needs data from somewhere else.

The cheapest way is to keep your Greece plan for Greece and add our one-day Turkey plan for the day itself. It is the cheapest thing we sell for Turkey, it costs exactly what the one-day Greece plan does, and it carries two gigabytes, which is plenty for a day of sightseeing. Install it on hotel Wi-Fi the night before and switch your data line to it on the boat. For two or three days across the water, the week-long Turkey plan fits better, and above five gigabytes Turkey is cheaper than Greece at every size.

Buy it before you go, not on arrival. Since 2025 Turkey has restricted access to international travel eSIM storefronts, and the list of affected sellers keeps changing, so assume you may not be able to buy travel data once you are on a Turkish connection. An eSIM that is already installed is not affected; it connects like any roaming SIM.

The one-plan alternative is the cheapest Europe plan that includes Turkey. It covers both sides of the water, and it turns the accidental crossing into a non-event, because a Turkish mast is inside its coverage. At five gigabytes it costs a little under twice the Greece plan, and a Greece plan plus the one-day Turkey plan comes to just under three quarters of it. At one gigabyte it costs exactly what the Greece plan does and runs for a month instead of a week.

If you want unlimited data on both sides, no single plan does it. The unlimited Europe plans leave Turkey out, so an unlimited trip across the water means an unlimited plan for each country, and Turkey’s is the cheaper of the two at every length.

• One day across: your Greece plan plus the one-day Turkey plan, bought and installed in Greece.
• Two or three days across: the week-long Turkey plan.
• A trip split evenly between the two: two five-gigabyte country plans cost about three fifths of a ten-gigabyte Europe plan with Turkey on it.
• No fuss on the islands facing Turkey: the cheapest Europe plan that includes Turkey, at a little under twice the Greece price.

Corfu and Albania: a day plan, not the Balkans plan

Corfu’s version of the day trip runs across the channel to Sarandë, the beaches at Ksamil and the ruins at Butrint, by boat from Corfu Town. The accidental version happens along the same coast: phones on the east and north-east of the island can join an Albanian network with nothing on screen but a welcome text.

Albania is on none of our Europe plans. Apart from the worldwide plans, the only multi-country plan that covers Greece and Albania together is the Balkans plan, and for a Corfu holiday it is the wrong buy: at five gigabytes it costs about two and a half times a Greece plan plus a one-day Albania plan. The Balkans plan earns its price on a genuine road trip through several Balkan countries, not on one day across a channel.

Albania matches Greece on the one-week plan and the small monthly one, and costs more above them. Its one-day plan costs half as much again as the Greek one, its five-gigabyte month about a third more, its ten-gigabyte month more than half as much again, and its unlimited plans cost noticeably more at every length. For a day trip that is small change; for a week in Albania it is worth knowing before you book.

For EU visitors the same rule as Turkey applies: Albania is outside the roaming zone today, so on Corfu’s east coast lock your home line to a Greek network, and buy the day’s data rather than roaming into it.

Greece plus Italy, Cyprus or Croatia: a Europe plan costs the same

Most two-country Greek trips do not involve Turkey or Albania at all. They add Cyprus, or Italy by ferry from Patras or Igoumenitsa, or Croatia, or a few days somewhere else in Europe on the way home. For those, the arithmetic holds a pleasant surprise.

At three and five gigabytes for a month, the two cheapest Europe plans cost exactly what the Greece plan costs, and each covers more than thirty destinations, including Cyprus, Italy, Croatia, Bulgaria, Malta and Spain. For any Greek trip with a second country from that group on it, take the Europe plan at those sizes: it costs the same as Greece alone and replaces the second plan entirely. Even for Greece on its own it costs nothing extra at those two sizes, which makes it a free hedge against a change of plan.

Above five gigabytes, the Greece plan becomes the cheaper of the two for Greece alone. At ten gigabytes the Europe plans cost between a fifth and a third more, and at twenty about a sixth to a fifth more. A second country still tips it, though: for Greece and Italy, Greece and Cyprus, or Greece and Croatia, the Europe plan costs less than two country plans at every size we sell, and at the smaller sizes it costs half.

Two things to check on the list before you pay. Neither of these Europe plans includes Turkey or Albania, so they do nothing for the coastal problem; for that you want the cheapest Europe plan that includes Turkey, or the free fix. And one of the two leaves France out, which does not matter for Greece but does if the trip ends in Paris.

What the table shows, and the two sizes where Greece costs more

The validity next to each price in the table above matters as much as the price. At one gigabyte we are fractionally cheaper, and our plan runs a week against three days. At three gigabytes ours runs a month against a week, for a little over half the price.

At five gigabytes for a month, where a normal week lands, we are half their price. At ten, where a fortnight of island hopping lands, we are under half. At twenty we are a little over half.

Unlimited is the straightest comparison on the page. Both sides give three gigabytes a day at full speed and drop to the same reduced speed afterwards, so the word means the same thing on both sides and only the price differs: about a fifth less with us for a week, and a little less for a month.

Two honest footnotes. At fifty gigabytes, a size the table leaves out, their month and ours cost the same to within a cent. And Greece is one of the countries where our own price ladder steps up at the top: the twenty-gigabyte month costs about a fifth more than the same plan for Italy or Spain, and the fifty-gigabyte month about a quarter more. Croatia, Cyprus and Bulgaria share the same twenty-gigabyte step, so it is a price shared across that corner of Europe rather than a Greek surcharge.

Four Greece plans to walk past, and one worth buying

The one-day ten-gigabyte plan. It costs about nine tenths of the ten-gigabyte month, for one day instead of thirty, and it cannot be topped up. Unless you genuinely need ten gigabytes inside twenty-four hours, the month is almost the same money with twenty-nine more days on it.

The twenty-gigabyte month, bought up front. It costs more than twice the ten-gigabyte month. Start with ten and top up another ten if you need it: a top-up costs the same as the plan itself, the two together still cost less than twenty bought at once, and you only pay for the second half if you use it.

The one-gigabyte week. A quarter more buys three gigabytes for a month, which is three times the data and more than four times the window. The week-long plan only makes sense when one gigabyte truly covers you.

A week of unlimited for an ordinary holiday. Seven days of unlimited cost more than the twenty-gigabyte month, and three days of unlimited cost more than the whole ten-gigabyte month. A hotel-based week in Greece usually fits comfortably in five gigabytes.

The plan worth knowing about runs the other way. The one-day plan with two gigabytes on it is the cheapest thing we sell for Greece, and it is exactly right for a single day: a cruise call at Santorini or Mykonos, a long layover in Athens, a day in Greece from somewhere else. It cannot be topped up, so buy it for the day and nothing more.

And for anyone who comes back more than once a year, to family or to a house on an island, there is a fifty-gigabyte plan with a six-month window, for about five per cent more than the fifty-gigabyte month. The clock starts at its first connection in Greece, so one purchase can carry an Easter visit and a summer one.

• Skip the one-day ten-gigabyte plan: nine tenths of the month’s price for a thirtieth of the time.
• Buy ten gigabytes and top up, rather than twenty up front.
• Skip the one-gigabyte week unless one gigabyte truly covers you.
• Skip a week of unlimited for a hotel-based trip.
• Do buy the one-day plan for a single day in port or a long layover.

On a boat: flotillas, charters and long ferry days

In Greece, plenty of visitors spend whole days at sea, on a flotilla in the Ionian, a charter yacht in the Dodecanese or a long ferry across the Aegean, and at sea the coastal problem loses its coastline. Signals carry a long way over water, and a phone joins whatever it hears.

The case that made the British news involved neither Kos nor Corfu. A holidaymaker’s phone joined a Turkish network during a sailing trip, most likely, the ombudsman concluded, as the yacht passed east of Naxos and Mykonos in the middle of the Cyclades. Forty minutes of data came back as a bill of more than eight thousand pounds, and the operator reduced it only after a complaint to the ombudsman, which ruled that the charges were valid.

The rule on a boat is simple. Turn your home line off for the day, or at least turn its data roaming off and lock it to a Greek network, and let the travel eSIM carry the data. A travel plan cannot be surprised into a bill at sea; when it has nothing to connect to, it waits. On the long crossings, anything you need at the other end, tickets, directions and booking references, belongs on the phone before you sail.

On a sailing holiday one phone usually becomes the boat’s internet, running a hotspot for the whole crew, so size the plan for the boat rather than the person. The hotspot draws on the same allowance, and on unlimited plans it counts toward the daily full-speed amount. For a crew sharing one connection for a week, start at twenty gigabytes and top up if people stream.

Cosmote, Vodafone and Nova: the networks, and where 5G is

Greece has three mobile networks, Cosmote, Vodafone and Nova, and all three run 5G. A Greece eSIM can use any of them, and on automatic it attaches to whichever is strongest where you are standing, so on an island-hopping trip it changes networks without you noticing. That freedom is why manual selection is worth doing only on the coasts facing Turkey and Albania: everywhere else, leave the phone on automatic, because one network may have the better mast in one harbour and another in the next.

You get 5G where the network has it and your phone supports it, and a good 4G connection elsewhere, which is plenty for maps, ferry bookings, calls and sending the sunset home. Signal thins out in the mountains, on remote beaches and at sea, and comes back as you approach the next town.

Nine Greek trips, and what each one needs

These assume the phone does the ordinary work of a Greek holiday: maps, ferry and restaurant bookings, messaging and a lot of photos, with automatic photo backup left on Wi-Fi. Add a size if a laptop is coming or if several people share one connection. On an EU contract you may need nothing for Greece itself, but the day-trip lines still apply to you.

Whichever you choose, install it at home over Wi-Fi. The paid days start when the eSIM first connects to a network in Greece, not when you buy it, so buying weeks ahead costs you nothing.

• A long weekend in Athens: the small month-long size, or the one-day plan if it really is one day.
• A week on one island with Wi-Fi at the hotel: five gigabytes for a month.
• Two weeks of island hopping: ten gigabytes, topped up if you run low, not twenty up front.
• Kos, Rhodes, Samos, Chios or Lesbos: the same sizes, plus manual network selection, and the one-day Turkey plan for the day you cross.
• Corfu: the same, with a one-day Albania plan for Sarandë or Butrint instead of the Balkans plan.
• Greece with Italy, Cyprus or Croatia: a Europe plan, which at three and five gigabytes costs exactly what Greece alone does.
• A sailing week with one phone as the boat’s hotspot: twenty gigabytes to start, topped up as needed.
• A cruise call or a layover: the one-day plan.
• Back several times a year: the fifty-gigabyte plan with the six-month window.