Last Updated: October 15, 2026
Thailand SIM card for tourists: skip the airport, skip the tourist trap, here’s what to actually do
- Skip the airport counters and 7-Eleven: they sell tourist packages at tourist prices.
- Go to an official TrueMove H or AIS store with your passport, buy a standard SIM (around 50 THB), and ask for the current prepaid promotion. I’ve paid around 300 THB a month for 80GB and free calls.
- New and even cheaper: my by NT, from 100 THB a month, but its stores are harder to find.
- Need data the moment you land? Use an eSIM for your first day, then switch to a local SIM.
Every guide about a Thailand SIM card for tourists tells you to buy one at the airport or pick one up at a 7-Eleven. This guide does the opposite. It tells you what I actually do, and what most people in Thailand, including Thais themselves, do not even know they can do. The result is more data, better value, and a setup that makes every other tourist package look expensive.
I was born in Thailand. I have had friends use every version of this setup (airport SIMs, tourist SIMs, convenience store packages) and landed on the same answer every time. The direct provider route wins, and it is not particularly close.
Personally, I’ve never found the need for a postpaid plan. Honestly, prepaid is great. When I travel abroad, I simply don’t renew my promotion for the time I’m away. When I’m back, I top up the amount I need at any 7-Eleven across Thailand, and I’m back online just like that. It’s much easier, and there’s no contract to worry about.
This guide is different from every other Thailand SIM card for tourists page you will find. No affiliate links pushing specific tourist packages. No sponsored recommendations. Just the honest approach I use myself and recommend to every guest on a private Off Path Thailand itinerary, whether they are on a cultural, wellness, adventure, or romantic trip. Before you land, also read the Thailand ATM guide and the best money exchange Bangkok guide so your cash situation is sorted alongside your connectivity.
- Do not buy at the airport. Tourist packages at Suvarnabhumi and Don Mueang are overpriced. Skip them.
- Do not buy at 7-Eleven. Convenient, yes. Good value, no. The packages on the shelf are tourist pricing.
- Go directly to a TrueMove H or AIS official store in a mall, Big C, or Lotus’s. Bring your passport. Buy a standard SIM (around 50 THB).
- Ask for the current prepaid promotion at the counter. This is the insider move: 80GB and free calls for around 300 THB a month.
What to Avoid
Why the airport is the worst place to buy a Thailand SIM card for tourists
When you land at Suvarnabhumi Airport or Don Mueang Airport, the SIM card counters are right there in arrivals. Bright signs, English-speaking staff, tourist packages with big data numbers on the packaging. It looks convenient. It is, and that convenience is exactly what you are paying for.
Airport tourist SIM packages for Thailand typically cost 299 to 799 THB for 7 to 30 days of data. The networks are the same (TrueMove H, AIS, DTAC), but you are paying the tourist markup because you have no alternative in that moment and they know it. The same network, bought correctly at a store in the city, costs a fraction of the price with significantly more data.
The same goes for the SIM counters at other airports across Thailand, such as Phuket, Chiang Mai, Krabi and Surat Thani. Wherever you land, it’s worth waiting until you reach an official store in town.
The 7-Eleven situation is similar. Yes, you can buy a Thailand SIM card for tourists at any 7-Eleven. The SIM will work. But the packages on the shelf are tourist-facing products at tourist prices. The prepaid promotions that give genuine value are only available at official provider stores.
- ✗Airport counters: same networks, tourist markup, no access to monthly promotions. Avoid for anything beyond an emergency small top-up.
- ✗7-Eleven and convenience stores: convenient but limited to off-the-shelf tourist packages. The real promotions are not here.
- ✗Hotel concierge: even more expensive than the airport. Never.
- ✗Third-party vendors in tourist areas: Khao San Road, tourist market stalls, guesthouse lobbies. Avoid entirely.
The Insider Move
The Thailand SIM card for tourists hack most people, including Thais, don’t know about
Why does this work? Because these providers have two tracks. One is the tourist-facing product designed for people who land and need a SIM fast. The other is the regular Thai consumer market: prepaid plans designed to compete on value and retain local customers. When you ask for the promotion, you access the second track.
I shared this with a guest on a recent Chiang Mai private tour who had been buying tourist SIM packages for five years of annual Thailand trips. He was paying 599 THB for 15 days and 20GB. At the TrueMove store we walked into that afternoon, the current promotion was 300 THB for 30 days and 80GB. That is the gap this guide is about.
Which Provider
TrueMove H vs AIS: which is better for your Thailand SIM card for tourists?
Both TrueMove H and AIS run Thailand’s two strongest mobile networks. In Bangkok, Chiang Mai, and every major city, you will not notice a meaningful difference in coverage or speed.
I recommend TrueMove H for most tourists for one simple reason: top-ups are available at every single 7-Eleven in the country. There are over 14,000 7-Elevens across Thailand. Running low on credit in Chiang Dao? There is a 7-Eleven nearby. On Koh Kood? There is a 7-Eleven. This distribution makes managing a TrueMove prepaid plan effortless.
AIS has excellent network quality and particularly strong rural and mountain coverage, worth considering if your itinerary includes remote northern routes. For the majority of visitors, TrueMove H is the more convenient choice. If you are planning a day trip from Bangkok or exploring the north, the same SIM works everywhere. See the day trips from Bangkok guide for routes where connectivity matters.
Update: A New Option
A newer, cheaper prepaid option: my by NT
I recently discovered another provider with some pretty good prepaid deals: my by NT, the mobile brand of NT (National Telecom). Its monthly data packs are cheaper than most TrueMove H and AIS promotions, and they include free calls to other numbers on the NT network.
All three include unlimited free calls within the NT network and renew automatically every 31 days, for up to 12 cycles. Packs and prices can change, so check at the store.
Good to know before you go:
- You’ll need to find an NT store, and there are far fewer of them than TrueMove H or AIS stores, so check where the nearest one is before you go.
- Take your original passport, as you’ll need it to register the SIM.
- Speeds are capped at 15 Mbps on the bigger packs, which is fine for maps, messaging and social media, but slower than TrueMove H or AIS for heavy use.
TrueMove H vs AIS vs my by NT at a glance
Promotions and prices change, so always check what’s on offer on the day you visit.
Step by Step
How to get your Thailand SIM card for tourists the right way
Follow these steps after landing. You will not have connectivity for a short window, which is normal and manageable. The savings and data volume make it worth it every time.
Download Google Maps offline before you leave home
Before you board your flight, open Google Maps and download your hotel area and the nearest major mall offline. Go to Google Maps, search your area, tap the three dots, and select Download offline map. Takes two minutes and solves the entire no-connectivity window.
Arrive at the airport and skip the SIM counters
Walk past the SIM card counters in arrivals. Use the Airport Rail Link from Suvarnabhumi or a metered taxi to get into the city. Make sure you have cash. Read the Thailand ATM guide or the best money exchange Bangkok guide before you land.
Find a TrueMove H or AIS official store
TrueMove H stores are found in virtually every major mall in Bangkok: CentralWorld, Terminal 21, MBK, Big C, Lotus’s. AIS stores are similarly widespread. Bring your passport, as you cannot buy without it.
Ask for the current prepaid promotion
Do not just say “I want a SIM.” Say: “Can you show me your current prepaid promotions?” The staff will show you the rotating monthly deals. Pick the one that suits your stay. The SIM itself costs around 50 THB. The monthly promotion is applied separately.
Top up at any 7-Eleven when your month is up
Go to any 7-Eleven, tell the cashier you want to top up your True credit, hand over the amount of your monthly promotion plus 7% VAT, and the credit is added instantly. The promotion renews automatically. Never be stuck without data as long as you top up before it expires.
Where to Find Official Stores
Where to find a TrueMove H or AIS store for your Thailand SIM card for tourists
Official TrueMove H and AIS stores are in every major mall and superstore across Thailand. Here are the most reliable places to look:
Ask your hotel front desk for the nearest mall or Big C. Every hotel in Thailand knows where these are.
Value Comparison
Thailand SIM card for tourists: what you actually pay where
This table shows the real cost difference. Numbers are approximate, as promotions change monthly.
Promotions change monthly. Ask at the counter for the current offer on the day you visit.
Practical Tips
What to know before buying your Thailand SIM card for tourists
Always bring your original passport
Thai law requires passport registration for all SIM purchases. Original only, no photocopies, no phone photos.
Check your phone is unlocked before you travel
A Thailand SIM card for tourists only works if your phone is unlocked. If you bought your phone on a contract, check this before you leave.
Top up before it expires, and add 7% VAT
Most promotions renew automatically once the credit is loaded, so top up before the month ends or your data will stop. At 7-Eleven, pay the promotion price plus 7% VAT.
Have cash ready for the airport transfer
Without a SIM you cannot use Grab from the airport. Take a metered taxi (insist on the meter) or the Airport Rail Link. See the Thailand ATM guide for cash advice.
eSIM Option
Need data the moment you land? Consider an eSIM
If landing without data feels like too much friction, an eSIM is a simple backup. You buy it online before you fly from a provider like Airalo, and it connects as soon as you land, so you can book a ride or message your hotel straight away.
eSIMs usually cost more per gigabyte than a local prepaid promotion, so treat one as a bridge for your first day or two. Once you’re in the city, visit a TrueMove H or AIS store for the proper setup. Just check that your phone supports eSIM and is unlocked before you buy.
Before You Head Out
Sort out your SIM before you go off the beaten path
If you’re planning to explore Thailand off the beaten path, get your SIM set up in the city first, before you head somewhere quieter. Official stores are easy to find in Bangkok and other big cities, but much harder to find in small towns and rural areas.
Having your own data means you can navigate country roads and small villages without any trouble, look up opening times, translate menus and stay in touch with your driver or guesthouse. It’s also a reliable backup in case your hotel or homestay Wi-Fi isn’t the best, which is common in more remote places.
If your route includes the mountains or remote northern areas, AIS’s strong rural coverage is worth considering. And whichever provider you choose, download offline maps of the areas you’re visiting, just in case you lose signal.
Here are some of our favorite hidden destinations in Thailand, all places where it pays to have your SIM sorted before you go.
Common Questions
FAQ: Thailand SIM card for tourists
Conclusion
Getting a Thailand SIM card for tourists doesn’t have to mean paying tourist prices. Skip the airport and 7-Eleven, take your passport to an official TrueMove H or AIS store, and ask for the current prepaid promotion. You’ll get far more data for less, and you can top it up at any 7-Eleven for as long as you stay.
If you’d like to pay even less and don’t mind finding a store, my by NT is worth a look. And if you need data the moment you land, an eSIM will bridge the gap until you reach the city.
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About the author
Written by Dee, Thai-born founder of Off Path Thailand. The prepaid promotion approach in this guide is what I use myself and recommend to every guest. About the founder