Will it work if I drive into the Republic of Ireland?

No. The Republic of Ireland is a separate country with its own networks. This United Kingdom eSIM covers Northern Ireland only, so arrange separate roaming or a plan before crossing the border south.

Is there signal along the Causeway Coastal Route?

Mostly yes, through villages like Ballycastle and Bushmills and along the main road, but some cliff sections and glens have weaker coverage, so download the driving route in advance.

Northern Ireland eSIM.

Name: Northern Ireland travel eSIM
Brand: My Holiday SIM

From Belfast's Titanic Quarter to the Giant's Causeway coast — Northern Ireland, always online.

from $2.15/day · unlimited dataAll of United Kingdom →

Unlimited data5G where availableInstant QR by emailKeep your number

1 · How many days?

10 daysOther:days

2 · How much data?

3GBBest pricevalid 15 days$6.01$0.60/day

Cheapest plan covering your trip: 3GB, valid 15 days.

Travellers (one eSIM each)

1 × 3GB (valid 15 days) · 10-day trip$6.01

Good to know in Northern Ireland

If you cross into the Republic of Ireland — easy to do on the Causeway or border drives — check your plan, as this United Kingdom eSIM covers Northern Ireland but not the Republic, a separate country.

Best time to visit Northern Ireland

May to September gives the mildest weather and longest days for the coast and mountains; spring and early autumn are quieter, with fewer coach crowds at the Causeway.

Two simple ways to buy

Northern Ireland eSIM plans: unlimited, or by the GB.

Every Northern Ireland eSIM from My Holiday SIM is one of two straightforward types. Pick whichever fits how you travel in Northern Ireland — you can always top up or switch on your next trip.

Traveller streaming and browsing freely on an unlimited-data travel eSIM

Unlimited plans

High-speed data, nothing to count

Priced per day — the longer you stay, the better the daily rate. Ideal for streaming, hotspot and longer trips where you'd rather not watch a data meter. A fair-use policy keeps speeds fast for everyone; see each plan for the detail.

Best for streaming, video calls & hotspot
Great for longer or open-ended trips
One price per day — no GB anxiety

By-the-GB plans

3GB10GB20GB

A set bundle, brilliant value

A fixed data allowance (say 3 GB or 10 GB) valid for your travel days. The best-value pick for lighter trips built around maps, messaging and a bit of browsing. Running low? Top up in a couple of taps — nothing to reinstall.

Best value for lighter, shorter trips
Clear allowance — pay only for what you need
Top up any time from your phone

Compare plans →Not every destination has both types — the picker shows what's available where you're headed.

Plan your data

How much data do you need in Northern Ireland?

A rough, honest guide to sizing your Northern Ireland eSIM so you're not guessing. Most travellers in Northern Ireland are comfortable on 3–5 GB a week — heavy streamers just go Unlimited.

Traveller checking maps and messages on her phone using a My Holiday SIM eSIM

Not sure? Start with a 5 GB plan — you can top up in seconds if you run low.

Light

~1 GB / week

Maps, messaging & email

Google Maps, WhatsApp, email and the odd search. Plenty for a city break where you mostly need directions.

Suits 1–3 GB plans

Balanced

3–5 GB / week

Everyday holiday use

Everything above plus social scrolling, music, cloud photo backups and a little video. Where most travellers land.

Suits 5–10 GB plans

Northern Ireland eSIM: your local data guide.

Northern Ireland is small but scene-packed: Belfast's Titanic Quarter and murals, the basalt columns of the Giant's Causeway, the Mourne Mountains and the Game of Thrones filming trail. A Northern Ireland eSIM keeps your maps, coastal-route driving directions and data live as you loop the Causeway Coastal Route.

One eSIM for Northern Ireland and all of United Kingdom. It's the national United Kingdom eSIM — from $2.15/day with unlimited data, working the same in Northern Ireland as it does the moment you leave it.

Landing at Belfast International (BFS)?

Install the QR at home, then switch the eSIM on as you taxi in — you're online before you reach the arrivals hall.

Northern Ireland eSIM pricingbest-value plan · per day

Days

Per day

Total

Saving

3 days1GB

$1.04

$3.12

—

5 days1GB

$0.62

$3.12

−40%

7 days1GB

$0.45

$3.12

−57%

10 days3GBPopular

$0.60

$6.01

−42%

15 days3GB

$0.40

$6.01

−62%

30 days5GB

$0.23

$6.80

−78%

Each trip length shows the best-value plan that covers it. Total always shown before you pay.

eSIM vs the old ways in Northern Ireland

eSIM

ROAMING

AIRPORT SIM

Data allowance

Unlimited

Usually capped

Rarely unlimited

Price known upfront

Prepaid

Billed after

Varies at the desk

Ready when you land

Instantly

After the queue

Keep WhatsApp number

SIM swapped

Northern Ireland eSIM from $2.15/day — the whole bill, agreed before you fly.

Across the region

Where you'll lean on data in Northern Ireland.

Belfast

Reliable city 5G supports black-cab tours, buses and ride apps across the centre and Titanic Quarter.

Giant's Causeway

The visitor centre and Bushmills area are covered, but signal can dip along the cliff paths and clifftop walk.

Mourne Mountains

Newcastle town has good coverage, though the high granite peaks and reservoirs behind them lose signal.

Causeway Coastal Route

Data holds through the villages and main road, with occasional gaps on the remoter glens and headlands.

The practical bit

Getting around Northern Ireland on your eSIM.

Apps you'll want online in Northern Ireland

Translink— Official bus and rail times and tickets for Belfast and all of Northern Ireland.
mLink— Translink's mobile ticketing app for Metro, Glider and Ulsterbus travel.
Uber— Ride-hailing in Belfast; elsewhere rely on local taxi firms and black cabs.
Google Maps— Reliable driving and walking navigation for the Causeway Coastal Route.

How long to stay in Northern Ireland

Three to five days suits Northern Ireland, pairing a couple of nights in Belfast with a Causeway Coastal Route drive and the Mournes or Game of Thrones sites.

How much data for Northern Ireland

A light 1-3 GB covers a few days of maps and social sharing; choose more if you'll stream on coastal drives or hotspot from a rural cottage.

Coverage in Northern Ireland

Belfast, Derry-Londonderry and main towns have strong 4G and 5G, and the Causeway route mostly stays connected, but signal thins in the Mourne peaks and remoter coastal glens.

Where you're headed

Discover Northern Ireland.

Stunning view of Giant's Causeway with hexagonal basalt columns and cliffs.

Stunning coastal cliffs and serene ocean view in Ballycastle, Northern Ireland.

A scenic view of the coastal road winding along Giant's Causeway in Northern Ireland.

Abstract architectural detail of the Titanic Belfast building in Northern Ireland.

Cities in Northern Ireland

Zoom in on Northern Ireland.

Belfast eSIM

How to activate your Northern Ireland eSIM.

Full installation guide →

A traveller happily planning her next trip with a map and phone

Buy your plan

Choose your days — the QR code arrives by email in seconds.

A traveller installing her eSIM from the sofa in two minutes

Install at home

Scan the QR on Wi-Fi before you fly. About two minutes, no app needed.

Friends laughing together while packing for a holiday

Fly relaxed

Nothing counts down yet — your days start only at first connection.

A joyful family reunion at the airport arrivals hall

Switch on in Northern Ireland

Turn the line on when you land. Connected before baggage claim.

New to eSIM in Northern Ireland?

What is a Northern Ireland eSIM?

A Northern Ireland eSIM is a digital SIM that's already built into your phone. Scan one QR code and a local Northern Ireland data plan installs alongside your home SIM — no plastic, no tray tool, no swap. Your number and WhatsApp stay exactly where they are.

✓ 2-minute install✓ Keep your number✓ Works on phones from 2018+

How eSIM works →Check my phone

A traveller with a backpack smiling at her phone — online abroad with My Holiday SIM

Connected · 5G

Home SIM · calls & WhatsAppHoliday eSIM · unlimited data

30-day refund promiseUnused, uninstalled eSIM? Full refund, no questions.

The price is the billPrepaid and final — roaming charges can't happen.

Days start when you landInstall early with zero pressure; counting begins at first connection.

Humans, 24/7Real people answer, before, during and after the trip.

Why travellers choose My Holiday SIM for Northern Ireland.

Instant eSIM deliveryQR code in your inbox seconds after checkout — even at the departure gate.

No physical SIMNothing to collect, lose or poke out with a paperclip. Your home SIM stays put.

Keep your WhatsApp numberData flows through us; WhatsApp stays on your home number. Family always reaches you.

A traveller at the departure gate, eSIM ready on her phone

eSIM ready in ~2 minutes

No bill shock, everOne clear price before you fly. Roaming charges simply can't happen.

Secure paymentsCards, Apple Pay, Google Pay, PayPal and Klarna — encrypted end to end.

Real human supportReal people — before, during and after your trip. Live chat and email, no bots. Easy top-ups too.

Coverage in United Kingdom.

5G where available, fast 4G everywhere else

Connected · 5G

Your eSIM joins United Kingdom's partner networks automatically — no settings to choose, no manual network hunting. If signal drops in a remote spot, toggling Airplane Mode for a few seconds forces a fresh connection.

EE
O2
Vodafone UK
Three

Popular places covered

LondonEdinburghManchesterLiverpoolBathYorkCardiffBelfast

Keep data roaming ON for the eSIM line only — that's the switch travel eSIMs use, and it never adds charges on our plans.

Trusted networks, honest numbers.

No invented star ratings behind your Northern Ireland eSIM — just the numbers we actually stand behind.

Friendly globe with location pins — coverage on every continent

My Holiday SIMSTAY CONNECTED. ANYWHERE.

200+

destinations — every continent covered

regions covered by a single regional eSIM

~2 min

typical install — QR to connected

Live

chat & email support

Before you fly

Northern Ireland eSIM questions, answered.

Yes. Northern Ireland is part of the United Kingdom, so the same national plan covers Belfast, Derry-Londonderry and the whole province, roaming onto UK networks like EE, O2, Vodafone and Three.

Your Northern Ireland eSIM glossary.

eSIMA SIM built into your phone's hardware. Plans install onto it digitally — no plastic card involved.

QR profileThe code we email you. Scanning it downloads your holiday plan onto the eSIM. One scan per device.

Data roaming (the switch)The toggle travel eSIMs use to join partner networks abroad. On our plans it never adds charges — keep it ON for the eSIM, OFF for your home SIM.

Hotspot / tetheringSharing your phone's data with laptops and tablets. Included on our plans wherever networks allow.

Top-upExtra days added to a live plan from your account. They append to the end — nothing overlaps.

First connectionThe moment your eSIM first joins a network at the destination — that's when your days start counting, not before.

Travelling wider in United Kingdom?