Planning your trip to Bangkok and wondering if you can buy a tourist sim card at Bangkok International Airport? Don't waste money on high roaming charges or slow overseas data plans.
This is a complete guide with everything you need to know before buying a sim card at Bangkok Airport (BKK) in 2025.
Find out where to buy a sim card, up to date prices as per January 2025, my recommendation, a vlog about my arrival and my experiences, info about eSIMs for Thailand and more.
Being a full time nomadic traveler I am constantly on the road and in a new country pretty much every week. In the past I always used to buy a prepaid sim card in Thailand, nowadays I always use eSIMs to stay connected.
Traveltomtom also wrote a complete guide on how to buy a prepaid sim card in Thailand and a comparison of the best eSIMs for Thailand in 2025.
Table of Contents
- My recommendation
- Why buying a sim card for Thailand
- Where to buy a sim card in Bangkok
- Registration Process
- Free tourist sim card for Thailand
- Best 4G/5G network in Bangkok in 2025
- Prices prepaid sim cards at Bangkok Airport in 2025
- Best sim card at Bangkok Airport in 2025
- Best eSIMs for Thailand
- Order a prepaid sim card for Bangkok online
- Local prepaid sim cards for Bangkok vs. eSIMs and international sim cards
- Vlog about buying a sim card at Bangkok Airport
Some links in this article about the best ways to stay connected when traveling to Bangkok are affiliate links. If you buy any of the products after using an affiliate link in this article I earn a small commission. This is at no extra cost to you of course!
My recommendation
Buying a sim card at Bangkok Airport (BKK) is the most convenient place to buy a prepaid sim card for your trip to Thailand and it is affordable.
Hard to say what is the best sim card at Bangkok Airport. Pretty much all the mobile operators offer similar 5G ready tourist sim cards.
Traveltomtom prefers an AIS prepaid sim card as they have no data speed restrictions. More expensive, but better performance!
But I am also an advocate for using eSIMs when traveling to Thailand. You can order a DTAC eSIM for Thailand with unlimited data for just $9.90 USD via Airalo or SimOptions.
For more info check out my guide about the best eSIMs for traveling to Thailand in 2025.
A tourist sim card at Bangkok Airport is more expensive than buying a sim card in a phone store in Bangkok city center. If you want the cheapest prepaid sim card deals then check out my complete guide on buying a tourist sim card in Thailand in 2025.
If Bangkok is one of the stops on a trip to many several countries then you also want to look into so called international world travel sim cards. These sim cards let you connect and use data in multiple countries. For more info have a look at my comparison about the best sim cards for traveling to Asia in 2025.
Make sure your phone is unlocked before buying a prepaid sim card or eSIM. If you are unsure if your phone is locked or unlocked contact your mobile internet provider from home.
Why buying a sim card for Thailand
Local prepaid sim cards or eSIMs save you from excessive high roaming costs and slow overseas data roaming plans. The data roaming plans from your home provider operate abroad with reduced data speed and since there is 5G everywhere in Bangkok, it would be frustrated if you are still using a 3G signal.
No need to tell you that if you have no data connection on your phone life suddenly becomes a lot more complicated. No more ordering Uber (Grab in Thailand), finding nearby bars and restaurants, getting directions, staying in touch with friends or checking your banking apps or sports results.
Having a working data connection on your phone makes traveling to Bangkok much more fun!
Also be careful with relying on public WiFi, although everywhere available, it is often also pretty unstable and can be really slow. Begging for the WiFi password is annoying enough already, but also keep in mind that public WiFi is through an unsecured network. The use of a VPN is recommended to protect your data.
Local prepaid sim cards, international sim cards and eSIMs for Bangkok use a secured network and your data is protected. That said, many travelers still use VPN services for extra data protection.
Everywhere I travel I write sim card guides and as I am also trying to travel to every country in the world you can already find more than 200 sim card guides from all over the world on Traveltomtom: Asia, Kuala Lumpur, Malaysia, Singapore, Hong Kong, Bali, Indonesia, Australia, Sydney, Melbourne, New Zealand, Europe, United Kingdom, Germany, Spain, France, Italy, Turkey, Dubai, USA and many more.
So next time you are planning your adventure abroad come check out Traveltomtom for the latest prepaid and eSIM advice for your next holiday destination. Bookmark me!
Where to buy a sim card in Bangkok
Online
You can easily buy sim cards for Bangkok on the internet. Keep in mind that these sim cards are either international sim cards that will be shipped to your home address before your Bangkok trip or eSIMs that operate through a third party.
See my detailed Thailand eSIM guide for finding the best eSIMs for traveling to Thailand in 2025.
Suvernabhumi International Airport Bangkok - BKK
Buying a sim card for Thailand at Bangkok International Airport is the fastest way to get connected when you arrive in Bangkok. Everywhere around the airport you will find sim card shops from the mobile internet providers in Thailand that are happily selling sim cards for tourists.
Don't worry you can't miss the sim card shops at Bangkok Airport, they are everywhere! As soon as you walk out of the plane and follow the signs to immigration you will already see sim card stores everywhere.
Then near the luggage belts you will find many sim card shops all around the baggage claim hall. And with many I mean probably more than 10!
If you still haven't gotten your sim card for Thailand after you pick up your bag and walk through the customs bag check and arrive in the arrival hall then there you will again see big stores from the 3 mobile internet operators in Thailand: AIS, True Move and DTAC.
Trust me there is no escaping and there are signs everywhere with: 'buy your sim card for Thailand here'.
Opening hours
No need to worry about the opening hours of the sim card shops at Bangkok Airport BKK if you arrive super late. All the mobile phone stores are open 24 hours.
Cash only
More challenging is that a lot of sim card stores, especially in the baggage claim hall and before customs only accept cash! This is kind of annoying as you just arrived in Thailand and probably don't have Thai Baht yet.
There are ATM's all around as well as currency exchange. Mind you that all ATM's in Thailand charge a 220 THB fee for withdrawing money. That is $6.5 USD per transaction. This applies to all ATM's in Bangkok, there is no escaping!
If you want to pay for your Thailand sim card by card you have to wait until you are in the arrival hall. All phone shops in the arrival hall accept credit card payments.
Bangkok BKK Airport has good working free WiFi, so if you are not convinced by the local prepaid sim card deals you can always use the WiFi here to order an eSIM for Thailand.
However, it is no secret that Thailand sim cards at Bangkok Airport are more expensive than shops away from the airport. At Bangkok Airport they sell tourist sim cards for tourist prices.
In case you forgot to buy a sim card, you are reading this article after you already left the Bangkok BKK Airport or if you simply want the cheapest Bangkok sim card deals then you should visit any random phone store or official retail store in Bangkok where they sell prepaid sim cards for Thailand.
Bangkok city center
If you want the cheapest sim card deals for Thailand you have to wait until you reach the city center. Find the nearest phone shop on Google Maps and buy your sim card for Thailand here.
Traveltomtom recommends buying a Thailand prepaid sim card in an official retail store from one of the mobile internet operators in Thailand: DTAC, True Move or DTAC.
There are many official phone stores all over Bangkok, just head to any bigger shopping mall and you will find them.
You can also buy prepaid sim cards in convenient stores like 7Eleven, etc. Keep in mind that you will have to do the sim card registration yourself and that the staff won't be able to help you much as they are no sim card experts. The prepaid sim card deals at convenient stores in Bangkok are often in Thai language only, so good luck with that.
It is a cheap way to get a sim card for Thailand but complicated and you might need to go to an official store to complete the registration after all anyway. Therefore Traveltomtom does not recommend buying a sim card for Thailand in a convenient store in Bangkok.
For more info about buying a sim card in Bangkok city center check out my guide finding you the best prepaid sim card for Thailand in 2025.
Looking for Bangkok travel tips? What about my list of the 10 best things to in Bangkok or if you are looking for unusual things to do in Bangkok then check out this link. In total you can find more than 50 articles about traveling to Bangkok on Traveltomtom.
Registration Process
Everyone buying a prepaid sim card in Bangkok will have to show any form of photo ID, so bring your passport. Your new Thailand sim card will be registered on your passport number and name and a copy will be taken in the store.
If you want to avoid this then you can order an international sim card online or get an eSIM for Thailand. No passport registration is needed for these sim cards.
Free tourist sim card for Thailand
If you are flying to Bangkok with Thai Airways they will already give you a free sim card for Thailand in the plane just before landing. This is a DTAC Easy Holiday Happy sim card for tourists. The package says: free sim card + 8 GB internet.
FALSE ADVERTISEMENT DTAC!
The free internet allowance is literally just 20 MB and NOT 8 GB. Don't be lured with 'free sim card for Thailand' because all mobile internet operators offer you a free sim card, you just pay for the data package you activate.
Best 4G/5G network in Bangkok in 2025
If you are just visiting Bangkok only then it does not matter which mobile internet provider you choose. All tourist sim cards will work excellent in Bangkok. Thailand is one of the better connected countries in the world and there is almost everywhere 5G in Thailand, country wide! If you find a spot in Bangkok without a 5G signal you are very unlucky.
If you are traveling in Thailand and looking for the best 5G network then have a look at my guide for buying a prepaid sim card in Thailand in 2025 with updated info about the best 4G/5G network and fastest data in Thailand in 2025.
Data speed Bangkok
With a local prepaid sim card you can expect excellent data speed. I ran multiple speed tests on 5G and what you see in the above picture is the average download and upload data speed result.
Sometimes I got a data speed of more than 100Mbps and I also saw upload speed of more than 100Mbps.
If you want the fastest data speed on your Thailand sim card then it is important to ask about it in the sim card store when buying a prepaid sim card. A lot of the tourist sim cards in Thailand have capped data speed, see below.
If fast mobile internet is important to you then get a Thailand prepaid sim card with max data speed up to 100 Mbps.
Prices prepaid sim cards at Bangkok Airport in 2025
All info and prices are updated as per January 2025 and prices are in Thai Baht: $1 USD = 34.4 THB or 100 THB = $2.9 USD.
AIS
- 15 GB data at MAX SPEED (100 Mbps) + free social media + 100 THB calling credit for 8 days = 299 THB - $8.7 USD
- Unlimited data at 4 Mbps + free social media + 50 THB calling credit for 15 days = 699 THB
- Unlimited data at 10 Mbps + free social media + 50 THB calling credit for 30 days = 999 THB
- 25 GB data at MAX SPEED (100 Mbps) + free social media + 100 THB calling credit for 8 days = 499 THB
- 100 GB data at MAX SPEED (100 Mbps) + free social media + 200 THB calling credit for 15 days = 1,399 THB
- Unlimited data at MAX SPEED (100 Mbps) + free social media + 50 THB calling credit for 30 days = 1,699 THB - $50 USD
True Move
- Unlimited data + calls + 100 THB international calling credit for 8 days = 399 THB - $11.6 USD
- Unlimited data + calls + 100 THB international calling credit for 15 days = 699 THB
- Unlimited data + calls + 100 THB international calling credit for 30 days = 999 THB
They also have Thailand tourist sim card deals:
- 15 GB data + free social media + 100 THB calling credit for 16 days = 299 THB - $8.7 USD
- 30 GB data + free social media + 100 THB calling credit for 30 days = 599 THB
DTAC
At DTAC they make it of course complicated. We already saw that in the plane they hand out 'free Thailand sim card with 8 GB', which in reality is just 20 MB! Also when it comes to the prepaid sim card deals they sell across Bangkok Airport it is a little messy as every other shop has different prepaid sim card deals. Always ask for the guaranteed data speed when buying a DTAC sim card.
The above packages all claim to have max data speed, but when I asked some employees would say 10 Mbps, the be countered by another employee saying no it is 100 Mbps. Like... uh cant trust you guys.
Then I found another store above and they displayed all sim card deals stated with 10 Mbps data speed.
And then another store had these DTAC prepaid sim card offers. As you can see at the first picture I showed you a package for 299 with unlimited data at max speed for 8 days, but on the above picture the same package for 16 days.
This sucks DTAC, would be easy for tourists if you could uniform your prices at the different DTAC stores. Would also be easier for me to recommend DTAC sim card for traveling in Thailand.
Best sim card at Bangkok Airport in 2025
If you prefer to buy a prepaid sim card on arrival at Bangkok Airport then always check the max data speed. There are so many different prepaid sim card plans for tourists available, but all have different specifications.
I would personally recommend a sim card with no data speed restrictions. These sim cards are more expensive though!
An advantage of a Thailand prepaid or an eSIM with unlimited data with max 5G data speed is that you don't even need to connect to public and unsecured WiFi of your hotel for example.
Traveltomtom comes to the conclusion that AIS is the best sim card for Bangkok in 2025. They have prepaid sim cards for tourists with no capped data speed. AIS is very clear about the prepaid sim card deals they offer.
DTAC sim cards at Bangkok Airport are a mess as their prices differ at every shop and it makes me wonder what the max data speed really is.
But why not get yourself an eSIM. You arrange everything online within a couple minutes and for $9.90 USD you get 50 GB data via Airalo or SimOptions.
You are online as soon as the plane touches the ground and no need to buy a prepaid sim card at Bangkok Airport anymore.
Check out all the Thailand eSIM offers in my guide for buying an eSIM for Thailand in 2025.
If you want the cheapest sim card deals in Bangkok you should not buy a sim card at Bangkok Airport, but at a mobile phone shop near your hotel. Go where the local go and save a couple dollars. In that case you want to check out my guide for buying a prepaid sim card in Thailand in 2025.
Best eSIMs for Thailand
An eSIM is the easiest way to stay connected when traveling to Bangkok in 2025. You arrange everything online in just a couple steps and no need to visit a phone store and swap physical prepaid sim cards anymore.
You order an eSIM for Thailand on the internet, you receive a QR code, scan it, follow the simple steps and within less than 2 minutes you have a Thailand eSIM installed on your phone.
Upon arrival in Bangkok it automatically connects you to an available network and you enjoy data on your phone pretty much when the plane lands.
Check out Traveltomtom's guide with everything you need to know before buying an eSIM for Thailand in 2025, including a comparison of the best eSIMs for Thailand and answers to all your FAQ.
Airalo
Airalo is a reliable eSIM provider which Traveltomtom has used in more than 50 countries around the world.
Check out the following amazing eSIM deals for traveling to Bangkok:
- 50 GB data + 100 minutes for 10 days = $9.90 USD
- Unlimited data + calls for 15 days = $19.95 USD
- Unlimited data + calls for 30 days = $34.95 USD
Click here to order an eSIM for Thailand directly online via Airalo.
There are also other eSIM providers for Thailand like SimOptions, Roamless, Sim Local, Jetpac, etc. They offer the exact same DTAC Happy Tourist eSIM for Thailand.
Read more about why I prefer prepaid sim cards over eSIMs in my article with the best eSIMs for Thailand in 2025.
Order a prepaid sim card for Bangkok online
If your phone isn't eSIM compatible and you would like to order a sim card for Bangkok on the internet then look into the following.
Arrive prepared in Bangkok with an international prepaid sim card. You order them online and a physical prepaid sim card will be delivered to your home address. You put this sim card in your phone and it automatically connects to an available network upon arrival in Bangkok, basically when the plane lands you are instantly online.
SimOptions offers the following international physical prepaid sim card for traveling to Bangkok:
10 GB data valid in 124 countries for 14 days = $49.90 USD
Click here for more info or to order an international sim card for Bangkok via SimOptions.
Local prepaid sim cards for Bangkok vs. eSIMs and international sim cards
With a local prepaid sim card you get much more data for the same price and the best network connection and data speed possible. With an international sim card or an eSIM for Bangkok you are basically a guest on another mobile operators network. Which means your data speed is potentially lower, especially during peak hours when you are being put in the back of the line to use the available bandwidth.
Therefore Traveltomtom prefers local prepaid sim cards over eSIMs or international sim cards for traveling to Bangkok. Much more info about using eSIMs for traveling to Thailand in my detailed article with all the pros and cons about Thailand eSIMs.
However, it is a fact that eSIMs are very convenient. You just buy them online, install them and you are all set. When I have a 1-2 day layover in Bangkok I also order an eSIM online.
I am sure the above tips for buying a prepaid sim card for your trip to Bangkok, my tips about eSIMs and staying connected in general were helpful tips for traveling to Thailand.
Vlog about buying a sim card at Bangkok Airport
Watch my vlog above to find out more about buying a sim card at Bangkok Airport.
How to get around Thailand
Interested to find out what is the best way to get from Bangkok to Chiang Mai or to Phuket? Try the public transport search engine below and it will compare bus, boat and train tickets and even domestic and international flights. It will give you prices, time tables, reviews and much more info and you book directly online.
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After I found out about 12Go Asia it made traveling in Thailand so much easier. No more paper tickets, you arrange everything online and get the ticket confirmation on your phone instantly.
If you have any more questions then please leave me a comment below or reach out to me on Instagram.
Curious what it looks like trying to visit every country in the world? Go check out my Instagram account @traveltomtom and follow along. As of January 2025 I have visited more than 155 countries, so still a long way to go.
Enjoy your trip to Bangkok!