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HelloRoam's Thailand eSIM starts from €2.90 and taps into 199+ carrier networks across 185+ countries. Scan the QR code and you're online in under two minutes, on any eSIM compatible phone. Your Three Ireland, Vodafone IE, or Eir number keeps running on dual SIM.
199+
local networks
5G
5G support
2 minutes
to activate
![Thailand [[networkType]] network speeds](/icons/figma-2026/stats-speedometer.svg){kind=icon}
Last updated
Thailand data plans from Bangkok to the Gulf Islands
Cheap eSIM for Thailand, starting from €2.90. Local 4G/5G data on top carrier networks in Thailand. Works on all eSIM compatible phones. Thailand is one of Ireland's most popular long-haul destinations, pulling Irish holiday-makers to Bangkok's street food, Phuket's beaches, and Chiang Mai's temples. Suvarnabhumi arrivals SIM queues can be long after a busy flight. An eSIMs Thailand from HelloRoam starts at €2.90 and covers Bangkok, Phuket, Chiang Mai, and the Gulf and Andaman islands. Activate by QR at home before flying from Dublin. No roaming charges, no contract, 180-day refund guarantee on unactivated eSIMs.
Thailand eSIM with fast 5G coverage
HelloRoam offers eSIM plans for Thailand from €2.90. Connect on 5G and 4G networks including AIS, TrueMove H, and dtac (True Corporation brand). Brilliant for Bangkok city breaks and Thai island holidays from Ireland.
- Plans start at €2.90 with 5G speeds
- Coverage from AIS and 2+ other operators
- Instant activation in under 2 minutes
- 180-day money-back guarantee
- Thailand coverage across major cities
- Network
- 5G
- Plans From
- €2.90
- Activation
- Under 2 min
- Guarantee
- 180 days
How to Set Up an eSIM in Thailand
Pick a data plan for your destination and complete checkout online.
Scan the QR code to install your eSIM instantly.
Your eSIM installs instantly and activates the moment you land.
Track usage, top up data, and manage all your eSIMs in one place.
Pick a data plan for your destination and complete checkout online.
Scan the QR code to install your eSIM instantly.
Your eSIM installs instantly and activates the moment you land.
Track usage, top up data, and manage all your eSIMs in one place.
Trip changed? No bother, we have got you sorted.
Travel plans shift, and that's grand. HelloRoam refunds unactivated, unscanned eSIMs in full for up to 180 days after purchase, no drama.
Learn more about our refund policyHelloRoam Thailand eSIM vs Three Ireland, Vodafone IE and Eir roaming
Comparing eSIM vs a travel SIM card for Thailand? Eir charges up to €5.99/day for Worldwide Roaming, Vodafone IE up to €6.99/day for Global Roaming, and Three Ireland applies daily charges outside its Go Roam zone. Skip the airport SIM counter at Dublin Terminal 1 and get a prepaid eSIM from €2.90 with instant QR activation and a 180-day refund on unactivated eSIMs.
| Feature |  | Irish carrier roaming add-on | Limited data eSIM |
|---|---|---|---|
| 180-day refund policy |  |  | |
| 24/7 live chat support | |  | |
| €0 activation fees | | | |
| Free hotspot and data sharing | | | |
| No data overage charges | | | |
| Instant QR code delivery | | | |
| Premium Thailand carrier networks | | | |
Why Travellers from Ireland Use HelloRoam e-sim for Thailand
HelloRoam vs Other eSIM Providers for Thailand
eSIM provider reviews from Irish travellers consistently highlight the 180-day refund policy, zero activation fees, and 24/7 live support. See how HelloRoam compares to Airalo, Holafly, Saily, and other eSIM providers on the things that matter most for your Thailand holiday.
| Feature comparison | | Airalo | Holafly | Nomad | Saily | Ubigi |
|---|---|---|---|---|---|---|
| 180-day refund policy | | | | | | |
| 24/7 live chat support | | | | | | |
| €0 activation fees | | | | | | |
| Free hotspot and data sharing | | | | | | |
| No data overage charges | | | | | | |
| Instant QR code delivery | | | | | | |
| Premium Thailand carrier networks | | | | | | |
| Own branded carrier identity (SPN) | | | | | | |
What Is an e SIM? How eSIM Works in Thailand
An eSIM is a digital SIM built directly into your phone: no plastic chip, no SIM tray. Scan a QR code to activate in under 2 minutes on any eSIM compatible iPhone or Android. It works as a prepaid data plan for Thailand travel with no airport SIM counter, no physical SIM card, and no carrier contract. Sort everything at home before you head to Dublin Airport, Shannon, Cork, or Knock and you are ready to go the moment you land. guide
Mobile connectivity guide for Thailand
Thailand is a favourite long-haul destination for Irish travellers and the mobile coverage is genuinely impressive. AIS, TrueMove H, and dtac (both True Corporation brands) provide strong 5G and 4G coverage across Bangkok, Chiang Mai, Phuket, Koh Samui, and all the main tourist hubs.
Remote jungle areas, island boat crossings, and mountain trekking routes can have limited signal. A HelloRoam eSIM is far more convenient than buying a SIM at Suvarnabhumi Airport after a long flight from Dublin.
- HelloRoam connects to AIS 5G, DTAC 5G, True Move 4G in Thailand
- 5G and 4G on AIS, TrueMove H, DTAC, and True Move across Bangkok, Phuket, and Chiang Mai
- Connect the moment you land at Suvarnabhumi or Don Mueang airports
- Covers the main Thai islands including Koh Samui, Koh Phangan, and Phi Phi
eSIM Travel Tips for Thailand
Thailand is outside the EU: no EU roaming
Thailand is well outside the EU and your Irish carrier's EU roaming does not apply. A HelloRoam eSIM from €2.90 is far more affordable than international roaming add-ons from Eir, Three IE, or Vodafone IE for a Thai holiday.
Activate at home before your long-haul flight
Thai holidays from Ireland typically involve a connecting flight through Dubai, Doha, or London. Set up your HelloRoam eSIM at home before you leave Dublin. Enable data when you land in Bangkok and you are connected immediately, no airport SIM queue needed after an exhausting journey.
Download offline maps for remote islands
Crossing to smaller Thai islands like Koh Tao, Koh Lipe, or Koh Chang often involves losing signal on the ferry. Download offline Google Maps tiles for each island before boarding the boat from the pier.
Bangkok transport apps need live data
Bangkok's BTS Skytrain and MRT metro, Grab ride-hailing, and food delivery apps like Grab Food all need a live data connection. Your HelloRoam eSIM keeps all these running from the moment you clear immigration at Suvarnabhumi.
Chiang Mai trekking and remote areas
Chiang Mai city has excellent coverage. Trekking into the hills north of the city towards the Myanmar border area can have very limited signal. Download your route maps offline before setting out on any multi-day jungle trek.
Mobile networks in Thailand: what Irish visitors need to know
HelloRoam connects on AIS, TrueMove H, and dtac in Thailand. AIS has strong national coverage including rural and northern areas. TrueMove H and dtac (a True Corporation brand since 2023) are both strong in Bangkok and popular tourist destinations. All three have 4G across the main tourist areas with 5G in Bangkok. Your eSIM picks the best available signal.
- AIS
- 5G
- DTAC
- 5G
- True Move
- 4G
HelloRoam eSIM vs Irish carrier roaming in Thailand
Your connectivity picture for a Thai holiday from Ireland. Thailand is outside the EU.
RecommendedFrom €3.04 total
Plans from €2.90. Buy before your long-haul flight, activate at home, and arrive in Bangkok already on local data. Much cheaper than Irish carrier international roaming.
€6.91–€24.20 total
Available at Suvarnabhumi Airport counters but requires setup after a long flight. Tourist SIM packages can also be more expensive than a pre-bought eSIM.
€8.64–€17.29/day
Thai roaming rates from Irish carriers can be $3 to $10 per day. A two-week Thai holiday at international roaming rates could easily cost $40 to $150 in data charges.
| Category | Recommended | Thai SIM card | Eir, Three IE, or Vodafone IE Thailand roaming |
|---|---|---|---|
| Typical cost | From €3.04 total | €6.91–€24.20 total | €8.64–€17.29/day |
| Details | Plans from €2.90. Buy before your long-haul flight, activate at home, and arrive in Bangkok already on local data. Much cheaper than Irish carrier international roaming. | Available at Suvarnabhumi Airport counters but requires setup after a long flight. Tourist SIM packages can also be more expensive than a pre-bought eSIM. | Thai roaming rates from Irish carriers can be $3 to $10 per day. A two-week Thai holiday at international roaming rates could easily cost $40 to $150 in data charges. |
Best time to visit Thailand from Ireland
Thailand's best season for Irish visitors is November to April when the weather is dry and warm across the country. May to October is monsoon season with heavy rain, especially on the west coast and Andaman islands. The Gulf of Thailand side (Koh Samui, Koh Phangan) has a different weather pattern and can be visited from July to October. New Year and Christmas in Thailand are very popular with Irish travellers.
Reviewed by HelloRoam Editorial Team
Prices verified:
Your Thailand eSIM Questions Answered
An e SIM Thailand plan from HelloRoam gives you local network coverage across Bangkok, Phuket, Chiang Mai, and the islands from €2.90. HelloRoam delivers a QR code to your email, activated at home before flying from Dublin. No roaming charges from your Irish provider, no physical SIM card, and a 180-day refund guarantee on unactivated eSIMs included.
A HelloRoam e-sim Thailand plan covers Bangkok, Phuket, Chiang Mai, and all major Thai islands on local networks from €2.90. Activate the QR code at home before your Dublin flight so data is live at Suvarnabhumi on arrival. No physical SIM, no roaming fees, and a 180-day refund guarantee on unactivated eSIMs on every order.
HelloRoam is a top-rated eSIM for travellers from Ireland visiting Thailand. Plans start from €2.90 and connect through our worldwide network of 199+ carriers, giving you local 4G/5G speeds in Thailand. Activate via QR code in under two minutes, keep your Three Ireland, Vodafone IE, or Eir number on dual SIM, and enjoy a 180-day refund window on unactivated eSIMs. No daily roaming charge and no carrier contract.
A Thailand eSIM starts from €2.90. Fixed data plans run from 1GB to 20GB. Unlimited daily plans suit longer trips. All plans include local 4G/5G access with no overage charges and no carrier contract. That is far less than what Eir charges for non-EU Worldwide Roaming or Vodafone IE for Global Roaming.
eSIM in Thailand connects to local 4G/5G networks. Your phone picks the strongest available signal automatically on arrival, no manual carrier selection needed. Coverage spans major cities, airports, main roads, and most rural areas. You get the same local network speeds as residents of Thailand, not the premium daily rates Eir or Vodafone IE charge for international roaming.
Getting your eSIM for Thailand takes three steps. First, choose your plan at helloroam.com and pay in EUR. Second, scan the QR code from your confirmation email in Settings under Mobile Data, then Add eSIM. Third, your e-sim installs in under two minutes and activates when you land. Do everything at home before you head to Dublin Airport, Shannon, Cork, or Knock. No shop visit, no physical SIM swap, no queue.
Yes. iPhone XS and all newer models support your eSIM for Thailand. Go to Settings, tap Mobile Data, then Add eSIM, and scan the QR code from your HelloRoam email. Your Irish number stays active on your main SIM through dual SIM while HelloRoam handles all travel data on the eSIM line. iPhone 14 and later are eSIM-only with no SIM tray needed.
HelloRoam is a top eSIM choice for Thai holidays for Irish travellers. Plans start at €2.90 with 5G and 4G data on AIS, TrueMove H, and dtac (True Corporation). Buy before your connecting flight from Dublin, activate at home, and arrive in Bangkok already connected. No airport SIM queue after a long flight.
Yes, HelloRoam eSIM plans work across Thailand on AIS, TrueMove H, and dtac (True Corporation). Activate before your flight and connect the moment you land at Suvarnabhumi.
HelloRoam eSIM plans for Thailand start at €2.90. Larger plans are available for two or three-week Thai holidays combining Bangkok, Chiang Mai, and island-hopping in the south.
Yes, the main tourist islands including Phuket, Koh Samui, Koh Phangan, Koh Lanta, and Phi Phi have solid 4G coverage in resort areas. Smaller islands and ferry crossings can drop signal. Download offline maps before island-hopping.
Two weeks in Thailand using Grab, Google Maps, social media, messaging, and video calls home typically uses 5 to 10 GB. Streaming Netflix in the evenings or making lots of video calls adds more. A 10 GB plan suits most Irish two-week Thai trips.
HelloRoam eSIM for Thailand connects on AIS with 5G coverage. Thailand has 3 network partners in the HelloRoam system. Your phone selects the strongest signal automatically. Buy before your flight from Dublin and connect the moment you land.
HelloRoam eSIM plans for Thailand last from 12 to 30 days depending on the data size you pick. Thailand has 5G coverage via AIS. A longer plan suits Irish travellers on extended holidays or working holidays abroad. Select your plan, scan the QR code at home in Ireland, and connect from the moment you land.
Yes, Thailand has 5G coverage through AIS. HelloRoam eSIM plans connect on the best available 5G signal across Thailand. Buy your plan before your flight from Dublin and connect straightaway on landing.
What to Know Before You Buy
eSIM requires an unlocked, eSIM-compatible device. Check your phone settings before you buy.
Most travel eSIM plans provide data only. Your existing phone number stays active for calls and texts on your primary SIM.
Coverage quality varies by location within Thailand. Urban areas typically have strong network coverage, while rural or remote areas may have limited connectivity.
Install your eSIM before departure. Activation requires an internet connection, which may not be available at your destination airport.
Transparency Notice
- Service Provider Name (SPN)
- HelloRoam appears as the carrier name on your phone's status bar through the SPN, a standardized field in the eSIM profile. Unlike most travel eSIM resellers, HelloRoam provisions its own Service Provider Name.
- Public Network Name (PNN)
- HelloRoam holds a registered Public Network Name, the official carrier identity filed with telecommunications authorities. HelloRoam is recognized as a licensed service provider, not a white-label reseller.
- Access Point Name (APN)
- HelloRoam eSIMs auto-configure their Access Point Name during installation. Your device connects to the strongest local network infrastructure without manual settings.
Prices are our retail rates across 185+ countries. Plan recommendations use real traveller feedback and network performance data. Unactivated eSIMs qualify for a 180-day refund.
