Stay connected in Thailand

Thailand
eSIM

Stay connected across Bangkok, Phuket and Chiang Mai from the moment you land.

No roaming charges
Keep your WhatsApp number

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Activate within 6 months Instant email delivery

Plans from £0.99

Connect in Under 60 seconds

Choose your plan type

Fixed data plans

Choose the right data amount for your trip

7 day plans

1GB

WhatsApp, maps and email for short trips

£1.70

£1.70/GB

Technical Specs

Plan Validity: 7 Days
Activate Within: 180 Days
Hotspot / tethering: Supported
Network: AIS (5G), DTAC (5G)
Where it works: TH
Calls & SMS: Not included

15 day plans

3GB

Maps, WhatsApp and light browsing each day

£0.99

£0.33/GB

Technical Specs

Plan Validity: 15 Days
Activate Within: 180 Days
Hotspot / tethering: Supported
Network: AIS (5G), DTAC (5G)
Where it works: TH
Calls & SMS: Not included

30 day plans

3GB

Maps, WhatsApp and light browsing each day

£4.49

£1.50/GB

Technical Specs

Plan Validity: 30 Days
Activate Within: 180 Days
Hotspot / tethering: Supported
Network: AIS (5G), DTAC (5G)
Where it works: TH
Calls & SMS: Not included

5GB

More room for photos, social apps and navigation

£6.49

£1.30/GB

Technical Specs

Plan Validity: 30 Days
Activate Within: 180 Days
Hotspot / tethering: Supported
Network: AIS (5G), DTAC (5G)
Where it works: TH
Calls & SMS: Not included

Technical Specs

Plan Validity: 30 Days
Activate Within: 180 Days
Hotspot / tethering: Supported
Network: AIS (5G), DTAC (5G)
Where it works: TH
Calls & SMS: Not included

20GB

Extra data for video calls, hotspot and longer stays

£8.87

£0.44/GB

Technical Specs

Plan Validity: 30 Days
Activate Within: 180 Days
Hotspot / tethering: Supported
Network: AIS (5G), DTAC (5G)
Where it works: TH
Calls & SMS: Not included

Running low while travelling? Top up anytime from your account, no need to buy a new eSIM.

Unlimited data

Best for heavy usage, streaming and hotspot

10 day plans

Unlimited

Built for longer breaks, multi-city trips and heavier daily use.

£10.14

£1.01/day

Technical Specs

Plan Validity: 10 Days
Activate Within: 180 Days
Hotspot / tethering: Supported
Network: AIS (5G), DTAC (5G)
Where it works: TH
Calls & SMS: Not included
Fair Usage Policy: Enjoy up to 1 GB of high-speed data each day. Once this is used, speeds are reduced to 1 Mbps.

Unlimited

Built for longer breaks, multi-city trips and heavier daily use.

£9.47

£0.95/day

Technical Specs

Plan Validity: 10 Days
Activate Within: 365 Days
Hotspot / tethering: Supported
Network: True (5G), AIS (5G)
Where it works: TH
Calls & SMS: Not included
Fair Usage Policy: Enjoy up to 3 GB of high-speed data each day. Once this is used, speeds are reduced to 1 Mbps.

Selected Thailand 1GB 7Days

£1.70

Install before travel. Ready when you land.

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30-day refund if unused

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Everything you need for stress-free travel

Stay connected across Thailand

Coverage is strong and fast in Bangkok, Chiang Mai and the main beach resorts, and good around the island towns, connecting through an established Thai network. Signal fades on remote bays and on the water between islands, so keep offline maps for boat trips and quieter beaches.

Need help? We're here

Questions before or during your trip? Our UK-based team prides itself on fast, friendly support whenever you need us.

Need your eSIM urgently?

Order in seconds and receive your eSIM almost instantly by email, ready to install before you even leave for the airport.

Travel with confidence

Every eSIM includes instant activation, transparent pricing and our 30-day unused refund for complete peace of mind.

Running low on data?

Top up in seconds without replacing your eSIM, so you can carry on using maps, WhatsApp and everything else.

The questions everyone asks us

Astaroam Online · replies in minutes

Just now

Using an eSIM in Thailand

Thailand is one of the easiest places to stay online, and a travel eSIM means you can walk straight past the airport SIM sellers and step out already connected for Grab, maps and messaging. Buy and install it before you fly, then switch it on when you land in Bangkok, Phuket or Chiang Mai.

From the cities to the islands

Bangkok, Chiang Mai and the main beach resorts have strong, fast coverage. Around the islands and on the boats between them, from Phuket and Koh Samui to Krabi, the Phi Phi islands and the dive sites near Koh Tao, signal is good by the main towns and beaches but fades on remote bays and out on the water, so download offline maps and your ferry details before you set off.

How much data

For a two-week Thailand trip using maps, messaging, Grab and normal photo sharing, around 10–20GB is a sensible starting range. A short city break may only need 3–5GB, while frequent streaming or hotspot use can make 20GB or an unlimited plan a better fit.

Travel eSIM FAQs

Do I need to buy a SIM at the airport in Thailand?

No. With a Astaroam travel eSIM you buy and install online before you fly and step off the plane already connected, so there is no need to queue for an airport SIM or negotiate with the sellers in arrivals.

Will I have signal on the islands and ferries?

Around the main island towns and beaches, generally yes. On remote bays and out on the water between islands, signal fades, so download offline maps and your ferry or boat details before you travel between Phuket, Koh Samui, Krabi and the Phi Phi islands.

Can I use Grab as soon as I land?

Yes. Grab runs on your eSIM data, so you can book a ride straight from Bangkok, Phuket or Chiang Mai airport.

Will it work in Chiang Mai and the north?

Chiang Mai and the northern towns are well covered. Out in the hills, jungle and national parks, signal can be patchy, so keep offline maps for treks and rural roads.

How much data do I need for a two-week Thailand city and island trip?

For two weeks combining Bangkok or Chiang Mai with the islands, around 10–20GB is a sensible starting range for maps, messaging, Grab and normal photo sharing. If you stream frequently, upload lots of video or share a hotspot, consider 20GB or an unlimited plan.

Can I use it for a scooter trip with maps?

Yes. Navigation runs on your data, which is ideal for getting around by scooter. Download offline maps of your route first, since signal can drop on rural roads and around the national parks.

Can I top-up or extend the plan later?

Top-up availability depends on the plan. Some eSIMs can be topped up, including certain unlimited plans, while others may require a new plan once the current one ends or runs out. Check the individual plan details for your selected option.

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