Best eSIM for Greece (2026): 20 plans compared in £

Quick answers

The cheapest data plan here is £3.02.
Best value for a longer stay: Ubigi 10GB for 30 days, £10.59.
Unlimited data from Holafly: £55.76 for 30 days.
Greece is in the EU. O2, giffgaff, SMARTY, iD Mobile and Tesco Mobile include it; EE, Vodafone and Three charge about £2.75 a day.
No restrictions: WhatsApp, FaceTime and other app calls work normally over Greek mobile data and Wi-Fi.

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Prices

Greece eSIM prices compared

All 20 plans we track, cheapest first within each length.

Provider	Data	Lasts	Price (approx. in £)
Sim Local	1GB	3 days	£3.02US$4.00 · £3.02/GB	Go to Sim Local Provider link
AiraloNova, Vodafone	1GB	7 days	£3.02US$4.00 · £3.02/GB	Go to Airalo Provider link
NomadNova / Vodafone	1GB	7 days	£3.02US$4.00 · £3.02/GB	Go to Nomad Provider link
Saily	1GB	7 days	£3.39US$4.49 · £3.39/GB	Go to Saily Provider link
Sim Local	5GB	30 days	£7.36US$9.75 · £1.47/GB	Go to Sim Local Provider link
NomadNova / Vodafone	5GB	30 days	£8.30US$11.00 · £1.66/GB	Go to Nomad Provider link
AiraloNova, Vodafone	5GB	30 days	£9.05US$12.00 · £1.81/GB	Go to Airalo Provider link
Saily	5GB	30 days	£10.56US$13.99 · £2.11/GB	Go to Saily Provider link

Show all 20 Greece tariffs

Provider	Data	Lasts	Price (approx. in £)
UbigiBest value 10GB+Nova	10GB	30 days	£10.59US$14.04 · £1.06/GB	Go to Ubigi Provider link
NomadNova / Vodafone	10GB	30 days	£13.58US$18.00 · £1.36/GB	Go to Nomad Provider link
Sim Local	10GB	30 days	£14.71US$19.50 · £1.47/GB	Go to Sim Local Provider link
AiraloNova, Vodafone	10GB	30 days	£15.09US$20.00 · £1.51/GB	Go to Airalo Provider link
Saily	10GB	30 days	£17.35US$22.99 · £1.73/GB	Go to Saily Provider link
HolaflyVodafone, Nova	Unlimited	3 days	£8.98US$11.90	Go to Holafly Provider link
Saily	Unlimited	5 days	£36.97US$48.99	Go to Saily Provider link
Sim Local	Unlimited	7 days	£14.34US$19.00	Go to Sim Local Provider link
NomadNova / Vodafone	Unlimited	7 days	£18.86US$25.00	Go to Nomad Provider link
AiraloNova, Vodafone	Unlimited	7 days	£20.37US$27.00	Go to Airalo Provider link
HolaflyVodafone, Nova	Unlimited	7 days	£20.75US$27.50	Go to Holafly Provider link
HolaflyVodafone, Nova	Unlimited	30 days	£55.76US$73.90	Go to Holafly Provider link

Prices checked 25 September 2026. Most travel eSIM companies charge in US dollars, even to UK customers, so your bank converts the price when you pay. We show pounds at that day's rate (US$1 = £0.75458) with the dollar price underneath.

Price per GB in Greece

Each provider's best-value 30-day plan of 5GB or more, as a price per GB. Lower is better; orange = cheapest.

Ubigi£1.06

Nomad£1.36

Sim Local£1.47

Airalo£1.51

Saily£1.73

Roaming

What UK networks charge in Greece

A week in Greece: what it costs

7 days of data on each UK network's roaming (where there's a daily price) against the cheapest 5GB+ eSIM (Sim Local). Orange bar = eSIM.

Vodafone£19.25

Three£19.25

EE£19.04

VOXI£18.20

Sky Mobile£14

Cheapest eSIM£7.36

O2Included

giffgaffIncluded

SMARTYIncluded

iD MobileIncluded

LebaraIncluded

Tesco MobileIncluded

Lyca MobileIncluded

Your network	Per day	A week	Details
EE	£2.72 a day	£19.04	Europe daily charge (sources vary £2.47-£2.72; weekly £16.50) Check with your network
O2	Included	£0	Europe Zone included up to 25GB
Vodafone	£2.75 a day	£19.25	Europe Zone B daily roaming; 8-day pass £16, 15-day £21 Check with your network
Three	£2.75 a day	£19.25	Go Roam in Europe £2.75/day (£2 on plans before 18 Dec 2025), 12GB fair use
giffgaff	Included	£0	included up to 5GB (EU zone)
SMARTY	Included	£0	included up to 12GB; EU data pass £3/day if more needed
iD Mobile	Included	£0	included up to 30GB
VOXI	£2.60 a day	£18.20	European roaming pass £2.60/day (8 days £15, 15 days £20), up to 20GB
Lebara	Included	£0	Roam Like Home in EU, up to 30GB Check with your network
Tesco Mobile	Included	£0	Home From Home, UK allowance, no end date
Sky Mobile	£2 a day	£14	Roaming Passport £2/day (£10 for 5 days), 25GB fair use; free for VIP Diamond
Lyca Mobile	Included	£0	EU roaming from bundle, fair use applies Check with your network

Checked 25 September 2026. Roaming prices depend on your exact plan and when you joined, so check with your network before you travel.

Local know-how

Mobile in Greece: what to know

Mobile networks

CosmoteOpensignal's Best Network in March 2026, with the best coverage and fastest downloads.

VodafoneHighest time-on-network score in Opensignal's tests and good island coverage.

NovaSlightly cheaper, with good coverage in towns and cities.

Coverage

4G covers virtually all populated areas including small islands, but remote mountains have occasional gaps, and on islands close to Turkey or Albania phones can latch onto a foreign network.

Wi-Fi

Free Wi-Fi is widespread in cafes, hotels, museums and Athens metro stations; on Blue Star ferries Wi-Fi is paid on most routes but free on Saronic routes.

WhatsApp and FaceTime calls

No restrictions: WhatsApp, FaceTime and other app calls work normally over Greek mobile data and Wi-Fi.

Buying a local SIM

Greek law requires registration, so take your passport; it takes a couple of minutes at Cosmote or Vodafone shops, including their airport arrivals desks, or at many kiosks. Tourist SIMs cost about EUR 15 to 25 with 5 to 10GB plus minutes.

Emergency number

112

Tips for UK travellers

On Lesvos, Chios, Samos, Kos and Rhodes, set your phone to manual network selection and choose Cosmote, Vodafone or Nova so it doesn't roam onto a Turkish mast at non-EU rates.
On Corfu, phones can pick up Albanian networks (some visitors get a 'Welcome to Albania' text), so choose a Greek network manually there too.
Cosmote is the safest pick for island hopping after winning Opensignal's coverage and speed awards in March 2026.
On ferries, turn data roaming off or buy the onboard Wi-Fi, as Ofcom warns phones at sea can connect to a ship's satellite network with high charges.

FAQ

Common questions

Will 999 work from my UK phone in Greece?

Yes. The FCDO says calling 999 from a UK mobile in Greece automatically transfers you to Greek emergency services, but the local number is 112.

Do I need a passport to buy a SIM card in Greece?

Yes. Greek law requires registration, which takes a couple of minutes at the point of sale.

Why did my phone connect to a Turkish network in Kos?

Kos and other eastern Aegean islands are only a few kilometres from Turkey, so your phone may pick the stronger Turkish signal. Select a Greek network manually to avoid non-EU roaming charges.

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