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What is the best eSIM card service to use while traveling in Thailand?

Dec 29, 2025
2 days ago
Tracy *******
ORIGINAL POSTER
Traveling to Thailand next week, What is the Best ESIM Card Service to Get?

TYIA
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TLDR : Answer Summary
Travelers to Thailand are considering various eSIM options for mobile data. Popular recommendations include Airalo, Saily, and local carriers like AIS and True, with many users attesting to AIS having the best coverage. The conversation highlights eSIM services that can be activated upon arrival, including advantages and potential drawbacks. Several commenters recommend switching to local SIM cards for better reliability. There are also tips for getting a SIM card at the airport versus other retail locations in Thailand.
Thailand Digital Arrival Card (TDAC)

WARNING: Only trust Thai government websites with .go.th domains or Thai agent websites with .co.th or .in.th domains, as these require verified Thai registration and cannot be registered anonymously.

The official TDAC form is available at tdac.immigration.go.th, which uses the official .go.th government domain.

The services by AGENTS CO., LTD. does NOT charge any fees for arrivals within 72 hours. If you need to book more than 72 hours in advance, there is a service fee of $8.

Do not trust other sites pretending to be a trustworthy agency. Pay attention to delivery time - the service operated by AGENTS CO., LTD. has 1 minute delivery time for arrivals within 72 hours.

Don't fall for sites pretending to be agents.co.th or the official government tdac.immigration.go.th website. Always double-check the exact domain in your browser.

Scam services may take days to process your application, others may not even do anything. With these TDAC scam services you also need to worry about double charges.

Please watch out for TDAC misinformation spread by fugitive Jesse Nickles and his many fake accounts on Quora, TripAdvisor, Reddit, and other platforms.

TRUSTED TDAC LINKS:

Official Government TDAC Form: tdac.immigration.go.th
Official TDAC form by AGENTS
Official TDAC information page by AGENTS (tdac.in.th)

Ralph *******
Best reception - AIS, Best Value - TRUE
Mark *******
Mobimatters
John ********
Ais
RubyCel*******
Dtac after you finish your tdac
Tim ********
AIS
Alli *******
Airalo $25 AUD for unlimited data
Ray ******
Forget Esims I been on that route with Maya, paid my money for a month and it never worked. Took the phone to true and AIS, neither shop could figure out why it would not work. Got back to the UK, reported it to Maya mobil,e their answer was it doesn't work sometimes. Got my money back. Thank god for AIS and True.
Robert *********
Try and get an AIS eSIM at the airport, easy to do, I did last month when coming in.
Paul *******
šŸ“± Thailand SIM Card Guide 2025 — Best SIM for Tourists & Students
RealityC*********
I usually use ByteSIM for my travels.

They have $3 off and 20% discount now.

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Shane ***********
I use Saily, 5GB, cost $7.99 US for 30 days. You can pay and install from your own country, it activates when you enter Thailand. This is my third time using it.
Cam ********
@Shane **********
try Airalo, better servicešŸ‘šŸ¼
Shane ***********
@Cam *******
I’ve been just about all across Thailand and have had full service everywhere. Coming from Australia this is great coverage at a fraction of the price
Anita *****************
Yesim e-Sim card unlimited with Thai Phone-number (f.e to use Grab etc) and unlimted Hotspot for usage of more units ... often with special rebate. You can buy at home and just activate after Touch down. Worked perfectly for us šŸ‘
Chris *******
Nomad is cheaper than Airalo for Thailand,
Christopher *******
I use Holafly.... I don't mess with eSims anymore. I land, my phone works instantly.
Soren **********
Airalo - it will work when you have no wifi
Gayan **********
But local DTAC unlimited Sim cost 150 bath for 30 days
Michael *******
The one with the shortest queue all much of a muchness……service wise.
Andrew ******
AIS 100% I have tried AirAlo and saily, both were not good for data. AIS is the best option for Bangkok to Pattaya area.
Kieran *********
AIS with out a doubt, been here a week and 5g with no drop out.

690 bhts at the airport for 2 weeks unlimited with phone number
Kratos ******
Google Fi
Charles **********
Use Airalo —
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Baz *********
Saily eSIM.

Works great in Thailand..

Very good value plans..

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JP *******
Where are you going? That might help.
Steve ***********
Who you going to call? Down load line
Phill *****
Get a 1 or 2 day one in the airport on arrival which then allows you to contact friends family and taxis etc then goto a 711 and have a new one installed at a much lower rate than you would pay at the airport
Hans *********
@Phill ****
I think
****
only sells tourist sims to farangs need to go to a cell shop to get non tourist at least that's been my finding last 2 years
Dave **********
I've had dtac for 9 years now traveled all over Thailand domestically had perfect coverage never had a problem
Mitha *******
Get the Thai Sim Card, but if you want an SE E-Sim. Here is the info:
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Todd ********
If you have Tmobile in the USA … works perfectly fine in thailand if on a short holiday. You can get ESIM AIS and use for all data to speed up streaming and scrolling. Just toggle on esim data and toggle off your USA plan.
Carlos *********
@Todd *******
you can use tmobile in thailand without roaming charges??
Cam ********
@Carlos ********
no you have to pay them extra, then it may or may not work when you get here.
Todd ********
@Cam *******
i live in Thailand as well as in USA. works sometimes better than in The States. Texting right now from SĆ£o Paulo Brazil with Tmobile connected to Vivo 5G Brasil. You’re from šŸ‡ØšŸ‡­ā€¦.why the negativity
Cam ********
@Todd *******
I’m from the US. Did the T-Mobile route originally. It’s not worth the money for sure. And no, spent alot of time with support as to why I couldn’t connect to the local networks. Just giving my experience. I’ll take airalo eSIM for $6 a month, no issues and 30x cheaperšŸ‘šŸ¼
Todd ********
@Carlos ********
i have the Magenta including roaming for worldwide service. Works brilliantly in the rice fields in Laos.
Carlos *********
@Todd *******
my neice works for tmobile. Thats good to know!! Thanks, and have a Happy New Year
William ***********
Airalo works fine for me. But I use a worldwide plan. $69.00 for 20gb data 365 days. Works in 140+ countries.

Use this code to save us both some money

BILL2550
Martin ********
@William **********
that’s massively expensive! As are airalo and saily and all the other google advertised ones.
William ***********
@Martin *******
it works when I get off the plane immediately. I have a US phone number for 2 factor authentication. If $69 for 365 days of service is massive then so is my pecker.
Martin ********
@William **********
TMI and you know what they say about those who shout about it 😜

What happens when you've used your 20gb?
EmeraldC********
Download the YOHO app. Easiest and cheapest esims I've used when travelling
Alain ***************
Any local prepaid sim will do. Ive heard that ais is the best for islands and sparely populated areas. Just take your passport with you
Steve ******
Don’t get eSIM.sm…rubbish, here now and poor coverage
Bob ******
Saily
Yaoyu ***********
Basically there are only 2 telecom companies in Thailand : True态AIS. 🫔
Matt ********
I have ais and I found it awful for coverage. Got a true SIM and not looked back. Full data signal etc in same place my ais esim struggles.
Lee *******
I like AIS last year it worked for me in Bangkok, ļæ¼ Pattaya, and Si Sa Ket.
Todd ********
AIS. Bring your passport
Mike **********
AIS
Brian ********
I use Roamless. Works great and it never expires
Martin ********
I regularly use Trip dot com to get eSIM when I’m leaving Thailand for short trips to Vietnam and Malaysia. I paid 4 baht a day last week for Vietnam.
Deric ************
Thanks! What has Trip cost you while in Thailand per month and how much data do you use?
Martin ********
@Deric ***********
I have True physical SIM package 190/month with unlimited data at 6mbps, enough to stream TV
Jay **********************
For $15 a month sign up for Tello. I live in Thailand and use that service for my US number. Sign up while still in the US. I guess I am assuming your in the US.
Robin *******
Saily from Nord never had a problem
Phil ******
@ANONYMOUS MEMBER AIS Unlimited as best coverage of all carriers
ąøˆąø­ąø«ą¹Œąø™ąø™ąøµą¹ˆ *******
AIS
Peter *********
Both AirAlo
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and SimOptions

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have great options and deals for eSIM. By using these links you will get additional discount.
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