The best eSIM for Ireland keeps you online from Dublin, Shannon or Cork airport to the far end of the Wild Atlantic Way, and keeps working when you drive north into Belfast or fly on to London. Every plan here is a Europe or Global eSIM with daily or unlimited data, installed at home before you fly. Your usual number stays on for calls and texts.
Ireland eSIM
Ireland eSIM plans
Every plan is data only, priced in US dollars, with no contract and nothing to return.
Our picks
Three plans we would buy ourselves, by the trip you are taking. Every plan we sell is listed below.
Short trip
10.5 GB
1.5 GB a day
7 days
A week or so away: maps, messages, rides and the odd video call.
Part of the Europe bundle
$11.99
Buy this planLong trip
22.5 GB
1.5 GB a day
15 days
Two weeks or more, with room for photos, streaming and work email.
Part of the Europe bundle
$19.99
Buy this planHeavy use
Unlimited data
15 days
You stream, work online or share your connection every day.
Part of the Europe bundle
$29.99
Buy this plan
Also covered by Europe
One eSIM that also works in the other countries of the bundle, for a trip that crosses borders.
Also covered by Global (170 countries)
One eSIM that also works in the other countries of the bundle, for a trip that crosses borders.
See every country in Global (170 countries)
Also covered by Global (75 countries)
One eSIM that also works in the other countries of the bundle, for a trip that crosses borders.
See every country in Global (75 countries)
No eSIM, no charge. If your payment goes through and we cannot issue your eSIM, we refund you in full. Refund policy
Real people. A person answers every day, 07:00 to 23:00 Paris time, within 2 hours. How we look after you
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Local networks. See which ones it uses in Ireland
Which plan fits an Ireland trip
There is no Ireland-only plan here. Every plan on this page is a bundle: the Europe plan covers Ireland, the United Kingdom and 28 other countries, and the Global 75 and Global 170 plans reach further. Your data allowance is shared across every country on the list, so one eSIM, installed once, covers the whole trip. Pick by trip:
- A week in Dublin and a day trip or two: the 7 day Europe plan with 1.5 GB a day covers maps, buses, pub and restaurant bookings, messaging and photos. Take the 7 day unlimited plan if you make video calls or work from your hotel.
- A road trip on the Wild Atlantic Way: the 7 or 15 day Europe plan with daily data. Maps all day are what a road trip uses most, and the allowance resets every day.
- Ireland and Northern Ireland: the Europe plan covers both, so Dublin to Belfast, the Causeway Coast or Derry runs on one eSIM.
- Ireland and London, Edinburgh or Paris: the Europe plan covers the United Kingdom and France too.
- A month or longer: the 30 day Europe plan with 1.5 GB a day. Unlimited plans run up to 15 days.
On the daily plans, speed drops sharply once the day's 1.5 GB is used and comes back when the allowance resets. See fixed, daily or unlimited for how each type behaves.
Driving the Wild Atlantic Way
Most visitors outside Dublin rent a car, and the west coast is where your phone does the most work:
- Download offline maps of the whole route before you set off: the Ring of Kerry, the Dingle Peninsula, the Cliffs of Moher and the Burren, Connemara, Mayo and Donegal. The signal comes and goes on mountain roads and remote headlands.
- Ireland drives on the left, and many country roads are narrow, winding and shared with tractors, sheep and cyclists. Set the route before you drive, and let a passenger handle the phone.
- Book what you can ahead. Popular stops such as the Cliffs of Moher visitor center, boat trips to the Skelligs and ferries to the Aran Islands sell out in summer, and the confirmation sits in your email.
- Expect weather to change your plans. Boats to the islands and the Skelligs are often cancelled in wind, and operators text or email changes, so keep your data on.
Coverage across Ireland
Coverage is strong in Dublin, Cork, Galway, Limerick, Kilkenny, Belfast and the larger towns, and along the motorways. Where it changes:
- Kerry and the southwest: good in Killarney, Kenmare and Dingle town; thinner on the mountain passes and in deep valleys such as the Gap of Dunloe.
- Clare and Galway: good at the Cliffs of Moher and in Galway city; thinner in the Burren and inland Connemara.
- Mayo, Sligo and Donegal: good in the towns; patchy on the remote coast roads and headlands.
- The islands: the Aran Islands and the smaller islands have gaps away from the villages.
Before a hike, a drive through the mountains or a day on the islands, download what you need and save your bookings to the phone.
Northern Ireland and the border
Northern Ireland is part of the United Kingdom, and there are no checks on the land border. Near it, your phone can switch between Irish and UK networks without you noticing, and the Europe plan works on both sides, so a drive to Belfast, the Giant's Causeway or the Mourne Mountains needs nothing extra.
Entering the United Kingdom, even by road from the Republic, is a separate set of rules from entering Ireland: the UK requires most visitors, US citizens included, to hold an electronic travel authorisation (ETA). See Entering Europe in 2026.
Arriving in Ireland
Most visitors land at Dublin, with Shannon and Cork for the west and the south. Install the eSIM at home on Wi-Fi a day or two before you fly. When you land, turn on data roaming for the eSIM line only and keep it off on your usual SIM. You can then check the bus into the city or message your car rental before you reach the exit.
Flying home to the US from Dublin or Shannon, you clear US immigration and customs in Ireland before you board, so leave extra time at the airport.
How much data do you need?
Most visitors use about 1 GB a day for maps, messaging, bookings and photos. A road trip with maps on all day, video calls and sharing your connection push that up. For a long stay with remote work, look at the unlimited plans.
eSIM or roaming?
Most US carriers charge a daily fee for each day you use your phone in Ireland, or limit what is included: see will my phone work in Europe? and our guides to AT&T, Verizon and T-Mobile. If your phone plan is from an EU country, roaming in Ireland is generally charged at home rates for normal use. Coming from Great Britain, check your plan: some UK plans include Ireland, others charge a daily fee. More in travel eSIM vs international roaming.
Before you go
- Entering Ireland: Ireland is not in the Schengen area, so the EU's Entry/Exit System does not apply there. The UK's ETA does apply in Northern Ireland: see Entering Europe in 2026.
- Going on to London: our guide to Christmas and New Year in London, and the London Heathrow arrival guide.
- Several countries in one trip: eSIM for Europe explains how a multi-country plan works and which countries are on the list.
Networks in Ireland
Ireland's mobile networks are Vodafone, Three and Eir. Northern Ireland is served by the United Kingdom's networks. A travel eSIM connects to a local network as a roaming partner, which is why data roaming must be on for the eSIM line. The partner network can differ from plan to plan, so check the plan details, or ask us at support@esimlounge.com before you buy.
How to install your eSIM
Install it at home before you fly, then switch it on when you land.
Check your phone
Your phone must support eSIM and be carrier unlocked. Most phones from the last few years do.
Scan the QR code
Scan the code from your email while you still have Wi-Fi at home. It takes about two minutes.
Switch on when you land
Turn on the eSIM line and data roaming for it. Keep your usual SIM for calls and texts if you like.
Ireland eSIM questions
What is the best eSIM for Ireland?
It depends on your trip. For a week in Dublin or a road trip on the west coast, a daily plan with 1.5 GB a day is enough for most people. If you stream, make video calls or share your connection, take unlimited. The Europe plan also covers Northern Ireland and the rest of the United Kingdom, so a trip across the border needs no second install.
Does the same eSIM work in Northern Ireland?
Yes. Ireland is sold on our Europe plans, which also cover the United Kingdom, so your data keeps working in Belfast, on the Causeway Coast and anywhere else across the border.
Does it work on the Wild Atlantic Way?
Yes, in the towns and along most of the main routes. It can drop on mountain roads in Kerry and Connemara, in parts of Donegal and Mayo and on the islands, so download offline maps before a road trip.
I'm coming from Great Britain. Do I need an eSIM?
In Northern Ireland your UK plan works as it does at home. In the Republic it depends on your plan: some UK plans include Ireland, others charge a daily roaming fee. If yours charges, an eSIM for the trip usually costs less.
Will my US phone work in Ireland?
Most recent US phones work on Irish networks. To use a travel eSIM, the phone must support eSIM and be carrier-unlocked: how to check. Your US SIM stays in the phone for calls and texts while the eSIM carries your data, so keep data roaming off on your US line to avoid your carrier's daily fees.
Is Ireland in the Schengen area?
No. Ireland has its own entry rules, so the EU's Entry/Exit System does not apply there. Northern Ireland follows the United Kingdom's rules, which require an ETA for most visitors.
Will I keep my phone number?
Yes. Your usual SIM stays in the phone for calls and texts, and the eSIM carries your mobile data. Keep data roaming off on your usual SIM to avoid roaming fees from home.
When does the plan start counting days?
On most plans the days start when the eSIM first connects to a network in a covered country, not when you install it. The plan details say how yours works.
Ireland travel guides
Our guides for getting online there.
