The best eSIM for Thailand, without the roaming bill
Land in Bangkok already online. Compare verified Thailand eSIM data plans, see live prices on AIS, TrueMove H and dtac coverage, and add a promo code to pay even less, all without swapping a SIM or registering your passport in a shop on arrival.
- AIS · TrueMove H · dtac
- No passport sign-up
- Verified codes
Compare eSIM plans for Thailand
Live prices and data allowances for Thailand, side by side. Pick a plan, then check the promo codes page to see if a coupon brings it down further.
No SIM swap, no sign-up
Install before you fly and skip the airport SIM counter and the passport registration a local Thai prepaid SIM requires.
Real Thai networks
Travel eSIMs ride AIS, TrueMove H and dtac, so you get genuine local coverage across Bangkok, the mainland and the islands.
Cheaper than roaming
A prepaid Thailand eSIM costs a fraction of home-carrier roaming, and a promo code trims the price further still.
Staying connected across Thailand
Thailand rewards travellers who stay online: booking a Grab in Bangkok, paying by QR with PromptPay, navigating Chiang Mai's old town and reading a Thai menu all run on data. A travel eSIM gives you that from the moment you land, on the same networks locals use, across a trip with long hops between the mainland and the islands.
- AIS: the widest, fastest 4G and 5G footprint, strong in Bangkok and the main tourist hubs
- TrueMove H: broad national reach across the cities, the north and the southern beaches
- dtac: a solid value alternative with dependable coverage on the well-travelled routes
Online in Thailand in 3 steps
Setting up takes a couple of minutes on Wi-Fi before you leave home, so you arrive connected with nothing to buy or register at the airport.
- 1
Compare & pick
Use the comparison to choose a Thailand plan that matches your stay and data needs, then apply a promo code.
- 2
Buy & install
Pay online and scan the QR code on home Wi-Fi to install the eSIM days before departure.
- 3
Land connected
Switch on the data line when you reach Bangkok's Suvarnabhumi airport and you are online instantly on a local Thai network.
Thailand travel & connectivity guides
Practical guides to stay connected while you travel, pick the right eSIM and pay less for your mobile data, step by step.
Thailand eSIM FAQ
- Which is the best eSIM for Thailand?
- It depends on how long you stay and how much data you use. For a classic Bangkok, Chiang Mai and island-hopping trip a few gigabytes covers maps and messaging, while a longer stay or heavy hotspot use is simpler on an unlimited plan. Compare the price per GB and the local network above, then add a promo code before you buy.
- Will an eSIM work across Thailand?
- Yes. Travel eSIMs ride Thailand's main networks (AIS, TrueMove H and dtac), which cover Bangkok, the main tourist routes and the islands well. Coverage thins only in the deepest jungle and remote national parks, but the cities, Phuket, Krabi and Koh Samui are reliably online.
- Do I need ID to use an eSIM in Thailand?
- No. Buying a local prepaid SIM means a shop visit and passport registration under Thai law, but a travel eSIM is bought online before you arrive and activates instantly by QR code, with no paperwork and no queue after a long flight into Bangkok.