Thailand eSIM

Which Thailand plan fits your trip

Thailand plans come in three shapes. The plan cards above show the days and data on sale:

• Daily data suits steady use: maps, ride-hailing, messaging and photos every day. Use is steady from day to day in Thailand, so this is the usual pick.
• Fixed data gives one allowance for the whole trip, to use heavily one day and lightly the next.
• Unlimited suits heavy users and remote work. A fair-use policy applies; the plan details say how.

See fixed, daily or unlimited for how each type behaves.

Coverage in the cities and on the islands

Coverage is strong in Bangkok, Chiang Mai, Pattaya, Phuket, Krabi and on the main islands such as Koh Samui. On smaller islands, in national parks and in the hills of the far north, it can be patchy on any network, and ferries often lose signal mid-crossing. Download offline maps of each island before you go, and save ferry tickets and hotel confirmations to your phone. More on this in our eSIM for Thailand guide.

Arriving at the airport

Install the eSIM at home on Wi-Fi a day or two before you fly. When you land at Bangkok Suvarnabhumi, Bangkok Don Mueang, Phuket or Chiang Mai, turn on data roaming for the eSIM line only and keep it off on your usual SIM. You can then book a Grab, check the Airport Rail Link or message your hotel straight away, instead of queuing at a SIM counter after a long flight.

How much data do you need?

A typical traveler using maps, ride-hailing, messaging and photos uses about 1 GB a day. Video calls, streaming and sharing your connection with a laptop push that up. Remote workers and heavy social media users are better served by a larger daily allowance or an unlimited plan.

Visiting more than Thailand?

The Asia Pacific plan covers Thailand together with Vietnam, Cambodia, Laos, Malaysia, Singapore and other destinations in one install, and the global plans cover it too. They suit a trip that continues across Southeast Asia: check the country list on the plan before you buy.

How our Thailand plans compare

Start from how much data you use in a day, then compare what the whole trip costs. On unlimited plans, check how much you get at full speed each day: that is where providers differ most. Our own prices are on the plan cards above, always current.

Provider	One week	Two weeks	What to know
eSIM Lounge	0.6 or 1.5 GB a day, or unlimited for 5 days	0.6 or 1.5 GB a day, 60 GB, or unlimited	Prices on the plan cards above. Unlimited keeps full speed for the first 5 GB each day. No 7 day unlimited plan: the steps are 5 and 15 days.
Airalo	5 GB: $7.00. 10 GB: $10.00. Unlimited: $21.00	10 GB: $10.50. 20 GB: $17.50. Unlimited: $39.00	Unlimited slows to 1 Mbps after a daily allowance. Runs on True and can be topped up.
Holafly	Unlimited: $27.50	Unlimited: $50.50	Unlimited only, on True and dtac. Hotspot sharing is capped at 1 GB a day, and fair use can slow you for up to a day.
Nomad	1 GB: $5.00. Unlimited for 10 days: $15.00. 10 GB for 30 days: $10.00	50 GB for 10 days: $15.00. Unlimited for 30 days: $33.00	Unlimited gives 2 GB a day at full speed, then 1 Mbps. No 7 or 15 day unlimited plan. Connects to True, AIS or dtac.
Saily	1 GB: $2.99. Unlimited: $28.99. 10 GB for 30 days: $10.99	Unlimited: $48.99. 20 GB for 30 days: $19.99	Unlimited gives 5 GB a day at full speed, then 1 Mbps. Ad blocking and web protection are built into the app.

Which to pick:

• A light week: if 1 GB covers the whole trip, Saily's $2.99 plan is the cheapest we found. Our 0.6 GB a day plan gives 4.2 GB over the week.
• A week of steady use: our 1.5 GB a day plan gives 10.5 GB over the week. When we checked, none of the four sold that much for less: Airalo's 10 GB was $10.00, Nomad's $10.00 and Saily's $10.99.
• Two weeks: our 15 day plan gives 22.5 GB, and it cost less than Airalo's 20 GB at $17.50 or Saily's at $19.99. If you would rather not count, our 60 GB plan covers heavy use for the whole fortnight.
• A week of unlimited: we sell 5 or 15 days, not 7. For 5 days, Airalo's $15.00 plan cost less than ours when we checked. Nomad's 10 day plan at $15.00 is the cheapest week we found if 2 GB a day at full speed is enough.
• Two weeks of unlimited: when we checked, ours cost less than the 15 day plans from Airalo ($39.00), Saily ($48.99) and Holafly ($50.50). Nomad's 30 day plan at $33.00 runs longer but slows after 2 GB a day.

Competitor prices checked on 10 October 2026 in US dollars, on each provider's site or, where it would not load or would not show the plan in US dollars, on esimDB. They change often.