Ireland eSIM
Stay connected across Ireland. Install before you fly.
- 4G on Three
- Instant on arrival
- Refund if it doesn’t activate
Choose your plan
All prices GBP7 days
15 days
30 days
Good to know
Calls and texts
Ireland plans are data only. Use WhatsApp or FaceTime for calls.
Your phone
It needs to support eSIM and be unlocked. Check your phone
Refunds
If your eSIM doesn't activate, we'll replace it free or refund you in full.
Ireland eSIM plans at a glance
Cheapest
1 GB for 7 days, £2.09
Best value
50 GB for 30 days, £21.90, about £0.44 a gigabyte
Unlimited
From £6.00. Cheapest per day is 30 days at £1.24 a day
Network coverage in Ireland
Your Travelren eSIM runs on Three, one of Ireland's three mobile networks, on 4G. Signal is strong in Dublin, Cork, Galway, Limerick and Kilkenny and along the motorways between them, and the big stops on the Ring of Kerry and at the Cliffs of Moher are generally covered.
Keep reading
Where Ireland gets tricky is the far west and north-west: parts of Connemara, the Dingle and Beara peninsulas, the Wicklow Mountains and inland Donegal have stretches with weak or no signal, especially in valleys. If you're driving the Wild Atlantic Way, download offline maps and your accommodation details before the long legs.
- Networks
- Three
- Speeds
- 4G
What works in Ireland
Works well
- Google Maps on the Wild Atlantic Way, where signal allows
- TFI Live for real-time Dublin Bus, Luas and train times
- Booking tours and timed-entry attractions in Dublin
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- Video calls home from the cities and most towns
- Ferry and flight check-ins
Watch out for
- Gaps in remote parts of Connemara, Kerry, Donegal and the Wicklow Mountains
- The plan covers the Republic of Ireland only, not Northern Ireland
- 4G only on these plans
- Data only: no Irish number
Arriving in Ireland
Most visitors fly into Dublin (DUB), with Shannon (SNN) and Cork (ORK) the main alternatives for the west and south, and all three have good coverage. Ireland uses the euro; Northern Ireland, across the border, is part of the UK and uses sterling.
Keep reading
Contactless payment is standard in pubs, shops and taxis, and a Leap card gives lower fares than cash on Dublin's buses, Luas trams and DART trains. Driving is on the left, rural roads are narrow, and many visitors hire a car for the west coast, where public transport thins out. Weather changes quickly on the Atlantic side, so a live forecast is worth having.
Installing your Ireland eSIM
Install your Ireland eSIM before the trip while you're on WiFi: scan the QR code from your order email in Settings, Mobile Data, Add eSIM on iPhone, or via the SIM manager on Android. There's no APN to set. When you land in Dublin, Shannon or Cork, set the eSIM as your mobile data line and turn on data roaming for it.
Keep reading
Keep your home SIM switched on for calls and texts, with its roaming off if you want to avoid charges.
Common questions
Which network does the Travelren eSIM use in Ireland?
Three, on 4G. Three is one of Ireland's three mobile networks, with good coverage in the cities, towns and along the motorways. The APN sets itself, so it connects automatically once data roaming is on for the eSIM line.
Will I have signal on the Wild Atlantic Way?
In most towns and at the major stops, yes. The quieter stretches, particularly in Connemara, on the Dingle and Beara peninsulas and in Donegal, have gaps where signal drops for a while. Download offline maps before long drives and save your accommodation details somewhere you can reach without data.
Does the Ireland eSIM work in Northern Ireland?
No. Northern Ireland, including Belfast and the Giant's Causeway, is part of the UK, and this plan covers the Republic of Ireland only. If your trip includes both, choose a plan that lists both Ireland and the UK, or buy a UK plan for that part of the trip.
How much does Telstra charge to roam in Ireland?
Ireland is in Zone 2 of Telstra's International Day Pass: A$10 a day with 2 GB of data a day, checked September 2026. AT&T's International Day Pass is US$12 a day. With a Travelren plan you pay once for the trip, not for every day you use your phone.
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When does my Ireland plan start?
When your phone first connects to a network in Ireland. You can install the eSIM at home and the plan's days begin once you land.
Is 4G good enough in Ireland?
In cities and towns, yes: it handles video calls, streaming and navigation without trouble. The bigger question in rural Ireland is whether there's signal at all, not its speed, so plan around the coverage gaps rather than the network type.
Do I need cash in Ireland?
Very little. Contactless cards and phone payments are accepted almost everywhere, including pubs, taxis and small shops. A few euro in coins helps for parking meters, rural honesty boxes and the odd card-shy B&B.
Should I choose unlimited or a capped plan for Ireland?
It depends on how you use your phone. Maps, messaging and bookings use very little data, so a small capped plan covers most trips. If you stream, video call daily or work remotely, unlimited removes the need to watch your usage. Both run on the same Three network.
Europe regional plan
Visiting more than just Ireland?
One Europe eSIM covers Ireland, the United Kingdom and France, plus 20 other countries.
£25.55
Nearby destinations
Not flying yet?
Tell us when you go and we’ll email you a reminder to set up your Ireland eSIM three days before you fly. One email. That’s it.