Compare Travel SIMs in Thailand

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21 live offers compared from 9 providers, from THB 299. Updated daily.

What are Travel SIMs in Thailand?

Travel SIMs give visitors and outbound travellers a data (and sometimes calls) connection without paying costly roaming. They come as physical tourist SIM cards — popular with visitors to Thailand — and as eSIMs that download instantly to a compatible phone, used both by tourists here and by Thais travelling abroad. Domestic SIMs are provided by NBTC-licensed operators, while global eSIM services layer onto local networks in each destination country.

How the Thai market works

For visitors, Thai operators sell prepaid tourist SIMs with generous short-term data allowances, available at airports, convenience stores and online, and registration requires a passport under NBTC rules. For Thais heading abroad, global eSIM providers sell country- or region-specific data packs activated by a QR code, often bought before departure. Prices vary by data volume and validity, broadly THB 299 to THB 1,790 for a package. eSIMs have grown fast because they avoid swapping physical cards, keep your main number active, and can be set up in advance.

Benefits

Avoid roaming charges — local data rates instead of expensive home-network roaming.

Instant eSIM setup — download and activate before you even land.

Tourist data bundles — large short-term allowances for visitors to Thailand.

Keep your number — eSIMs run alongside your main SIM on dual-SIM phones.

How to choose

Match the data allowance and validity period to your trip length and usage — heavy map, streaming and hotspot use needs more than light messaging. Compare the price per gigabyte, whether calls and texts are included, and network coverage in your destination. For eSIMs, confirm your phone is eSIM-compatible and carrier-unlocked before buying. Visitors to Thailand should decide whether a physical tourist SIM (with passport registration on arrival) or a pre-purchased eSIM is more convenient for their trip.

Leading providers in Thailand

Options include global eSIM specialists Airalo, Flexiroam, Holafly, Simify and GlobalSIM, plus Thai operators AIS, DTAC and NT (National Telecom) for local tourist SIMs. Airalo and Holafly are popular for outbound eSIM data packs across many countries, while AIS and DTAC (now part of True) sell the widely used tourist prepaid SIMs at Thai airports and convenience stores.

What it costs

Packages range roughly THB 299 to THB 1,790 depending on data volume and validity. Tourist SIMs for Thailand offer large short-window allowances at low cost, while outbound eSIM packs vary by destination — nearby Asian countries are cheaper per gigabyte than long-haul or unlimited plans. Unlimited or premium-network packs sit at the top of the range, and topping up mid-trip is usually possible in-app.

Protections and regulation

Domestic tourist SIMs are provided by NBTC-licensed operators, and SIM registration with a passport is mandatory under Thai identity rules. Global eSIM providers operate through partnerships with licensed networks in each country. The NBTC oversees domestic mobile service quality and consumer protection.

Common questions

Physical SIM or eSIM? eSIMs are instant and keep your number; physical SIMs suit non-eSIM phones.

Do I need to register? Thai tourist SIMs require passport registration under NBTC rules.

Will an eSIM work on my phone? Only if your phone is eSIM-compatible and unlocked.

Can I top up mid-trip? Usually yes — most eSIM packs can be recharged in the provider's app.

Travel eSIMs in Thailand — FAQ