Ireland's mobile telecommunications network is built by three primary infrastructure operators: Vodafone Ireland, Three Ireland, and Eir. 4G and 5G coverage is comprehensive across Dublin, Cork, Galway, Limerick, and national motorway corridors.
As an EU member state, Ireland is covered by the EU's "roam like at home" framework. Visitors travelling from outside the EU or crossing between the Republic of Ireland and Northern Ireland can use travel eSIMs for predictable data pricing without roaming surprises.
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Lowest price
$0.99
$0.99/day
WiiLine502 MB for 1 day
Visit WiiLine(opens in a new tab)See in the listLowest per day · Cheapest for a month or more
$3.80
$0.13/day
eSIMX3 GB for 30 days
Visit eSIMX(opens in a new tab)See in the listCheapest for a week or more
$2.50
$0.36/day
eSIM2Fly1 GB for 7 days
Visit eSIM2Fly(opens in a new tab)See in the listCheapest unlimited
$2.80
$2.80/day
eSIMXUnlimited for 1 day
Visit eSIMX(opens in a new tab)See in the list240 of 240 plans for Ireland
WiiLinePrices checked Source: wiiline.me (opens in a new tab)
SimOptionsPrices checked Source: simoptions.com (opens in a new tab)
UbigiPrices checked Source: cellulardata.ubigi.com (opens in a new tab)
eSIM2FlyPrices checked Source: esim2fly.com (opens in a new tab)
eSIMGlobePrices checked Source: esimglobe.com (opens in a new tab)
WiiLinePrices checked Source: wiiline.me (opens in a new tab)
eSIM2FlyPrices checked Source: esim2fly.com (opens in a new tab)
eSIMGlobePrices checked Source: esimglobe.com (opens in a new tab)
Virgin Connect RoamPrices checked Source: roam.virginconnect.com (opens in a new tab)
eSIMXPrices checked Source: esimx.com (opens in a new tab)
WiiLinePrices checked Source: wiiline.me (opens in a new tab)
eTravelSimPrices checked Source: etravelsim.com (opens in a new tab)
eSIM2FlyPrices checked Source: esim2fly.com (opens in a new tab)
eSIMGlobePrices checked Source: esimglobe.com (opens in a new tab)
SimOptionsPrices checked Source: simoptions.com (opens in a new tab)
Showing the first 15, in the order chosen above.
The cheapest plan from each provider that lasts at least this long. Data allowance in brackets.
| Provider | 3+ days | 7+ days | 15+ days | 30+ days |
|---|---|---|---|---|
| Airalo | $11.503 days (unlimited) | $27.007 days (unlimited) | $48.5015 days (unlimited) | $71.0030 days (unlimited) |
| Holafly | $11.903 days (unlimited) | $27.507 days (unlimited) | $50.5015 days (unlimited) | $73.9030 days (unlimited) |
| aloSIM | $4.003 days (1 GB) | $4.507 days (1 GB) | $9.5015 days (5 GB) | $8.0030 days (3 GB) |
| Ubigi | $9.007 days (10 GB) | $9.007 days (10 GB) | $7.0015 days (3 GB) | $7.0030 days (3 GB) |
| Saily | $18.995 days (unlimited) | $3.997 days (1 GB) | $48.9915 days (unlimited) | $7.9930 days (3 GB) |
| eSIMX | $3.803 days (unlimited) | $3.307 days (3 GB) | $16.8015 days (unlimited) | $3.8030 days (3 GB) |
| eTravelSim | $19.997 days (unlimited) | $19.997 days (unlimited) | $39.9915 days (unlimited) | $4.0030 days (1 GB) |
| SimOptions | $1.503 days (1 GB) | $3.507 days (5 GB) | $11.5015 days (20 GB) | $28.9030 days (50 GB) |
| GoMoWorld | $4.997 days (4 GB) | $4.997 days (4 GB) | $12.9930 days (40 GB) | $12.9930 days (40 GB) |
| Jetpac | $12.993 days (unlimited) | $19.007 days (15 GB) | $41.9915 days (unlimited) | $29.9930 days (30 GB) |
| eSIMGlobe | $2.507 days (1 GB) | $2.507 days (1 GB) | $4.2015 days (3 GB) | $4.3030 days (3 GB) |
| Voye | $9.007 days (5 GB) | $9.007 days (5 GB) | $13.0015 days (8 GB) | $16.0030 days (15 GB) |
| eSIM2Fly | $2.507 days (1 GB) | $2.507 days (1 GB) | $4.2015 days (3 GB) | $4.3030 days (3 GB) |
| eSIMo | $3.907 days (1 GB) | $3.907 days (1 GB) | $8.5030 days (3 GB) | $8.5030 days (3 GB) |
| Virgin Connect Roam | $3.007 days (1 GB) | $3.007 days (1 GB) | $4.5015 days (2 GB) | $5.5030 days (3 GB) |
| Airhub | $5.0030 days (4 GB) | $5.0030 days (4 GB) | $5.0030 days (4 GB) | $5.0030 days (4 GB) |
| Roamix | $4.457 days (1 GB) | $4.457 days (1 GB) | $5.8515 days (3 GB) | $6.0530 days (3 GB) |
| WiiLine | $2.993 days (1 GB) | $2.997 days (1 GB) | $5.9915 days (5 GB) | $3.9930 days (3 GB) |
Check your home plan first if your SIM is from the EU or EEA
Under the EU's "roam like at home" rules, a SIM from any EU country, Iceland, Liechtenstein or Norway can use its domestic allowance in Ireland at no extra charge, subject to your operator's fair-use limit. If that's you, a travel eSIM may only make sense for extra data or if your allowance is small. Since 1 January 2026 the rules also cover Ukraine and Moldova.
Cross-border travel into Northern Ireland (UK)
If your itinerary includes Belfast or the Giant's Causeway in Northern Ireland, your phone will transition to UK mobile networks. Check whether your travel eSIM includes both Ireland and the United Kingdom, or opt for a Europe regional plan covering both.
Source: Simology — UK ↔ EU roaming in 2026; ComReg — Commission for Communications Regulation
Wild Atlantic Way and coastal coverage
While urban areas enjoy fast 5G speeds, remote coastal headlands and national parks along the Wild Atlantic Way (such as parts of Connemara or the Ring of Kerry) may switch to 4G or experience signal variations.
| Provider | Networks it lists |
|---|---|
| Airalo | Not named |
| Holafly | Not named |
| aloSIM | Not named |
| Ubigi | Not named |
| Saily | Not named |
| eSIMX | Not named |
| eTravelSim | Not named |
| SimOptions | Not named |
| GoMoWorld | Not named |
| Jetpac | Not named |
| eSIMGlobe | Not named |
| Voye | Not named |
| eSIM2Fly | Not named |
| eSIMo | Not named |
| Virgin Connect Roam | Not named |
| Airhub | Not named |
| Roamix | Eir |
| WiiLine | H3G Ireland, Meteor Mobile Ireland |
In our check on 26 Oct 2026, the cheapest verified plan for Ireland was WiiLine's ireland 0.49 gb, 1 day at $0.99. For a week or more, the cheapest was eSIM2Fly at $2.50 for 7 days. A 30-day plan started at $3.80 (eSIMX). Prices change, so confirm on the provider's site.
Yes. Ireland is an EU member state. If you possess a domestic SIM card from an EU or EEA country, you can use your allowance in Ireland under standard fair-use roaming rules.
Northern Ireland is part of the United Kingdom. Single-country Ireland eSIMs may not connect north of the border; if you plan to visit Belfast or Derry, select an eSIM covering both Ireland and the UK or a Europe regional plan.
Vodafone Ireland and Three Ireland offer the strongest overall coverage and performance. Vodafone excels in rural and coastal pockets along the Wild Atlantic Way, while Three delivers rapid 5G speeds in cities.
Single-country plans stop at the border. Compare nearby destinations, or see Europe prices side by side.
Official = regulator or manufacturer. Provider = the seller's own page. Secondary = press or independent guides, used only where no official source was available.
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