Best eSIM for Ireland (2026): Prices, Networks and the Northern Ireland Catch

The best eSIM for Ireland on price is Wayfarro, which is cheapest or level with the cheapest on every plan we compared. Five gigabytes for 30 days costs $7 at Wayfarro against $12.50 at Nomad, and 10GB costs $11 against $16. Seven days of unlimited data costs $21 with Wayfarro, $25 with Nomad and $27 with Airalo. Wayfarro's prices come straight from its store; Nomad's and Airalo's were checked in October 2026.

Ireland is an easy country for data. Coverage in the cities and along the motorways is good on every network, Wi-Fi is everywhere, and prices are low. The one thing that catches people out is the border: Northern Ireland is the UK, and an Ireland-only eSIM stops working the moment you drive into it, with nothing on the road to tell you. We cover that below.

Best eSIM for Ireland: prices compared

These are the plans from each provider's own Ireland page, confirmed in US dollars. Providers change prices and run sales often, so check before you buy.

Plan	Wayfarro	Nomad	Airalo
1GB · 7 days	$4	$4.50	—
2GB · 15 days	$4.50	—	—
3GB · 30 days	$5.50	$9	—
5GB · 30 days	$7	$12.50	—
10GB · 30 days	$11	$16	—
20GB · 30 days	$18	$20	—
50GB · 30 days	$45	$45	—
Unlimited · 1 day	$4.50	—	—
Unlimited · 3 days	$11	$11	$11.50
Unlimited · 5 days	$15	$18	$19
Unlimited · 7 days	$21	$25	$27
Unlimited · 10 days	$28	$33	$34
Unlimited · 15 days	$31	—	$48.50
Unlimited · 30 days	$44	—	$71
Networks	Not named on the plan page	Three, Eir	Not named on the plan page

How to read this table: Wayfarro is under Nomad on every fixed-data row except 50GB, where they're level. On unlimited plans Wayfarro and Nomad are level at 3 days, and from 5 days up Wayfarro is cheapest; at 15 and 30 days Airalo is the only other option and costs a lot more. Wayfarro is the only one of the three with a 1-day unlimited plan, a 2GB plan and a 100GB plan. Airalo's Ireland page showed only unlimited plans when we checked; it also sells fixed-data plans, so check its site for those. A dash means the provider doesn't sell that exact plan, or we couldn't confirm its US-dollar price.

Wayfarro's unlimited rows are its Unlimited Lite plans: 1GB a day at full speed, then 512 kbps until the next day. It also sells Unlimited Essential (1GB a day, then 1.25 Mbps) and Unlimited Plus (2GB a day, then 2 Mbps). Seven days costs $22 on Essential and $25 on Plus. Nomad and Airalo don't publish a daily high-speed allowance for their Ireland unlimited plans. Nomad says its eSIMs support hotspot.

Which is the best eSIM for Ireland for your trip?

Pick by itinerary:

• Dublin weekend (2–3 days): 1GB at $4 is enough for maps, the TFI Live bus app and WhatsApp. If you'll be posting all weekend, the 3-day unlimited at $11 is level with Nomad and under Airalo. A single-day layover gets Wayfarro's 1-day plan at $4.50.
• One week, Dublin plus Galway or Cork, normal use: 5GB at $7 against $12.50 at Nomad.
• One week on the Wild Atlantic Way, heavy use: 7-day unlimited at $21, the cheapest of the three. You'll be navigating single-track roads and uploading cliff photos every evening. The Plus tier at $25 gives 2GB a day before the slowdown.
• Two weeks around the whole island: 10GB at $11 or 15-day unlimited at $31. Nomad's 10GB is $16, and Airalo's 15-day unlimited is $48.50. If the loop includes Northern Ireland, see the next section before you buy.
• A month, or a work trip: 20GB at $18 against $20 at Nomad, or 30-day unlimited at $44 against $71 at Airalo.

The Northern Ireland border

Northern Ireland is part of the UK, so an Ireland eSIM doesn't cover it. There are no checks, no signs and no change in the road, so the first you'll know is Google Maps going grey somewhere past Dundalk or on the way into Derry. The Giant's Causeway, Belfast, the Titanic museum and the Game of Thrones filming spots are all on the Northern Irish side.

Three ways to handle it:

• Buy a second plan. Wayfarro's UK plans cover Northern Ireland; add one for the days you're north and keep both eSIMs installed. The best eSIM for the UK compares them.
• Use a Europe regional plan. The Europe eSIM covers both Ireland and the UK on a single eSIM, so the border stops mattering. It costs a little more than a single-country plan, which is fine for a trip that spends a few days on each side.
• Build the trip once. The Trip Builder lets you put Ireland and the UK on the same order with the right number of days for each.

Travelers with an EU SIM get roam-like-at-home in Ireland but not necessarily in the UK since Brexit, so check your home plan's UK terms too.

Networks and coverage in Ireland

Ireland has three networks that own and run their own infrastructure: Vodafone, Three and Eir. Brands like 48, GoMo, Tesco Mobile and An Post Mobile ride on those three. Nomad's Ireland eSIM lists Three and Eir, while Airalo's and Wayfarro's plan pages don't name their partner network, so you'll see which one you're on when you land.

Where coverage matters more than price:

• Dublin, Cork, Limerick, Galway and Waterford: Fast on every network, with 5G in the cities.
• The motorways (M1, M7, M8, M50): Good coverage between the cities, which matters because the gaps between towns are short.
• The Wild Atlantic Way: The 2,500 km route from the Inishowen Peninsula in Donegal down to Kinsale in Cork crosses nine counties, and a lot of it is narrow coast road between small villages. Towns are fine; expect weaker signal in the valleys of Connemara, the back roads of the Dingle Peninsula and parts of Donegal. Download the day's route in the morning.
• Islands: The Aran Islands, Achill and Valentia have coverage in the villages. Skellig Michael is a boat trip with little signal, so book it and check the weather before you go.
• Dublin Airport, Cork Airport and Shannon: All fine for activating your eSIM on arrival; Dublin's terminals also have free Wi-Fi.

How to set up an eSIM for Ireland

Install at home, switch it on when you land. It takes about two minutes:

1. Check your phone is unlocked and supports eSIM. iPhone XS and later, Google Pixel 3 and later, and most recent Samsung Galaxy phones do.
2. Install over Wi-Fi before you fly. Scan the QR code or use the one-tap install link. Step-by-step install guide.
3. Label it "Ireland" so it's easy to find in settings.
4. When you land, set the Ireland eSIM as your mobile-data line and turn on Data Roaming for it. Travel eSIMs technically roam, so data won't connect without this.
5. Keep your home SIM on for calls and texts (with its data roaming off) so bank codes still arrive.

With Wayfarro, the plan's validity starts when the eSIM first connects in Ireland, not when you install it. If you run low, you can top up the same eSIM without reinstalling it.

Ireland travel tips that save data

A few apps do most of the work in Ireland. Load them before you leave the hotel Wi-Fi:

• TFI Live for real-time Dublin Bus, Luas and regional bus times, and a Leap Card or contactless card for fares in Dublin.
• Irish Rail for intercity trains; book ahead for Dublin–Cork and Dublin–Galway, which are much cheaper in advance.
• Offline maps for the west. Rural signposts are in Irish and English and sometimes only Irish in the Gaeltacht areas of Connemara, Kerry and Donegal, so a downloaded map stops you missing a turn.
• Weather apps for the coast; Met Éireann's forecast is the one locals use, and it decides whether the Cliffs of Moher are worth the drive today.

Pubs, cafés and hotels almost all have free Wi-Fi, and so do most intercity buses and trains. If you're on a fixed plan, that's where the heavy uploads go. One more local thing: a lot of attractions and car parks on the west coast take card and app payments only, so keep the banking app logged in.

Bottom line

Wayfarro is the best eSIM for Ireland on price at every size, and the only one here with a 1-day plan. Nomad is level at 3-day unlimited and 50GB and a little higher everywhere else; Airalo costs more for the same number of unlimited days. Whichever you choose, remember that the plan stops at the Northern Irish border. See Wayfarro's Ireland eSIM plans, or take the Europe regional eSIM if your trip crosses into the UK or carries on to the continent.