For most travelers, Airalo is your go-to eSIM provider in Ireland. Yesim also works, but Airalo has the best coverage and simplest setup. Holafly and local eSIMs (like Vodafone’s eSIM) aren’t practical for tourists—they require a local number to activate, which you won’t have.
Providers & Pricing
Airalo:€10 for 1GB/3 days (best value), €15 for 3GB/7 days. Works on all networks (piggybacks on Vodafone Ireland’s network).
Yesim:€12 for 1GB/5 days. Less reliable coverage than Airalo.
Network & Activation
All eSIMs use Vodafone Ireland’s network (best coverage in cities and rural areas). Activation is instant via Airalo’s app—just scan the QR code. For dual-SIM: Turn on your phone’s eSIM settings (Settings → Cellular → Add eSIM), then scan Airalo’s code. Your physical SIM stays active for calls.
Pro Tip
Don’t buy a physical SIM and eSIM at the airport. Airalo’s 1GB plan covers your first few days—no need for a local SIM until you’re settled.
Physical SIM: Buy & Recharge Guide
Buy a SIM at an airport? Bad idea. You’ll pay €30 for 2GB (vs. €5-10 elsewhere). Skip it. Here’s how to do it right.
Actual Operators
Vodafone Ireland: Best network coverage (especially rural areas).
Three Ireland: Strong in cities; cheapest plans.
eir: Solid coverage; often has airport deals (but overpriced).
Where to Buy (Avoid Airports)
Convenience Stores: Dunnes Stores (most reliable), Tesco Express, Lidl, Supervalu. Look for the "Mobile" section near checkout.
Carrier Shops: Vodafone Store (Dublin city center), Three Store (Dublin, Cork, Galway). Avoid airport branches.
How to Top Up (The Real Way)
Forget "recharge" – say "prepaid top-up card" at stores. Here’s where and how:
1. Convenience Stores (Dunnes, Tesco, Lidl)
What to ask: "I need a top-up card for 5GB data, please." (Not "recharge" – they’ll stare blankly).
Payment: Cash only (€5,€10,€20 cards). Cards are sold as "prepaid top-up cards," not "scratch cards." Vouchers cost €5 for 5GB (valid 30 days).
Pro Tip: Buy €20 cards—they’re cheaper per GB than smaller ones. If you’re in a hurry, ask for "a €20 top-up card for Vodafone."
2. Carrier Apps (Use If You Have Data)
Vodafone App: Works with foreign cards (Visa/Mastercard). Go to "Top-Up" → "Prepaid." Accepts international cards. (No EU number needed for app payments.)
Three App: Same as Vodafone—accepts foreign cards. But app is only in English (rare for Ireland, but true here).
eir App: Only accepts Irish mobile numbers. Skip it if you’re a tourist.
3. USSD Codes (No App Needed)
Vodafone:123# (check balance), 123*1# (buy data pack). Say "5GB" when prompted.
Three:333# (check balance), 333*1# (buy data pack). Say "5GB" to confirm.
eir:123# (check balance), 123*1# (buy data). Less reliable—use Vodafone or Three instead.
4. Online Top-Up
Vodafone Website:vodafone.ie → "Top-Up." Accepts foreign cards. (No Irish number needed for payment).
Three Website:three.ie → "Add Data." Same as Vodafone.
Common Problems & Fixes
Problem: Store clerk doesn’t understand "recharge."
Solution: Say "prepaid top-up card" + show them the card you want (e.g., "€10 for 5GB"). Point to the card display.
Problem: Card declined at app/store (foreign card issues).
Solution: Always use cash for top-up cards. Apps accept cards, but stores won’t—cash is king.
Problem: App only in Irish language.
Solution: Vodafone/Three apps are in English. If you see Irish, tap "Language" → "English." (eir app is the only one that’s hard—avoid it.)
Emergency Fix: Stuck Without Data
If you’ve run out of data and can’t top up:
Go to a Dunnes Store or Tesco Express. Buy a €5 top-up card (cash only).
If no stores nearby, ask at a pub or cafe—they often sell top-up cards (ask "Do you sell mobile
Privacy by default. First-party analytics only. No remarketing cookies, no data broker pixels. What you read here is for you.
Transparency on money. Booking links may be affiliate. Our edit doesn't change based on commission — we recommend what the data supports.
Primary sources over aggregators. Prices from airline/rail/hotel APIs; seasonality from tourism boards; safety stats from national archives where possible.
Flavia Voican · Updated 2026-04-10