Prepaid travel data for Thailand with instant activation and no roaming fees
Quick Setup
No Roaming
4G/5G Speed
Refund Policy
Data only — no phone number, no calls, no SMS Your own number stays active on your existing SIM (dual SIM), and you can call and message through WhatsApp, FaceTime and similar apps.
Plans are temporarily unavailable for this destination.
You do not get a new phone number with this eSIM.
Setting up your eSIM? The installation and activation guide walks through it step by step, and the full FAQ covers device compatibility, hotspot, dual SIM and topping up.
Do you need a SIM card for Thailand? No. The four ways to get data, their real costs, and why an eSIM from £2.49 wins for most travellers.
Honest guide to staying online while island hopping in Thailand. A Thailand eSIM from £2.49 covers the main islands - here is where signal drops and how to prepare.
AIS, TrueMove H and dtac each cover Thailand differently. How they compare - and the honest truth about which one your travel eSIM runs on. From £2.49.
Since 15 September 2026, British passport holders entering Thailand without a visa can stay up to 30 days, for tourism only - and the Royal Thai Embassy in London adds that visa-free entry can be used only twice in a calendar year. Planning a longer trip, or a winter away? You need a visa. Your passport needs six months' validity and a blank page, and you may be asked to show 10,000 baht per person (20,000 per family) in funds.
Before you fly, complete the free Thailand Digital Arrival Card on the official immigration site within the three days before you arrive. Overstaying costs 500 baht a day, up to 20,000 (gov.uk, updated 28 September 2026). A tourism entry fee has been widely reported but is not in force; the embassy page does not mention one.
One plan covers the country, so the same eSIM works from Bangkok to Chiang Mai, Phuket and the Gulf islands. Install it at home and you are online at Suvarnabhumi before the taxi queue - useful for Grab, maps and the hotel transfer. It is data only; your UK number stays on your phone for bank texts.
Thai Airways flies from Heathrow to Bangkok twice a day in about 11 and a half hours, EVA Air flies Heathrow to Bangkok daily, British Airways flies from Gatwick, and Virgin Atlantic starts Heathrow to Phuket on 18 October 2026. Thailand is six hours ahead of the UK in British Summer Time and seven in winter. Sockets usually take several plug types but not the UK's, so pack an adaptor.
On a UK plan, EE charges £6 a day (£30 a week), O2 Travel £7, Vodafone £8 and Three £7 (£8 on some plans started since December 2025).
Up to 30 days, for tourism only, since 15 September 2026 - and visa-free entry can be used twice a calendar year, according to the Royal Thai Embassy in London. You also need to complete the free Thailand Digital Arrival Card within three days before arrival (gov.uk, updated 28 September 2026).
The cost of using your UK plan in Thailand, network by network, from each network’s own price guide (checked 8 October 2026). Prices are for current plans; older plans are sometimes cheaper.
| Network | Cost in Thailand | Worth knowing |
|---|---|---|
| EE | £6 a day | £30 for 7 days; included on Full Works |
| O2 | £7 a day (O2 Travel) | Or 1GB for £9; O2 Travel is capped at 2Mbps |
| Vodafone | £8 a day | £6 on plans from before 11 August 2021 |
| Three | £8 a day | £42 for a 7-day pass; not available on pay as you go |
| Tesco Mobile | £5 per MB | |
| Sky Mobile | £2 per 24 hours | Roaming Passport Plus; free for Sky VIP Diamond |
| VOXI | £16 for 8 days | Global Roaming Extra, with 2GB |
| SMARTY | 10p per MB | After buying a prepaid add-on (£5 to £15) |
| iD Mobile | £1.50 per MB | Or Roam Beyond: 2GB for a day, £5 |
Every network, zone and join-date rule is explained in UK mobile roaming charges compared.
Get our Asia eSIM for one plan that works across the region, or pick a neighbouring destination below.