The free network is AOT Airport Free Wi-Fi by NT. Select it, enter your email, tick Accept Terms and Conditions and tap OK. Each session lasts 60 minutes. Airports of Thailand advises connecting only to this official network and not to look-alike networks.
Getting online at Suvarnabhumi Airport
Suvarnabhumi Airport (BKK) serves Bangkok. Here is how to get online from the moment you land: the free Wi-Fi, where SIM cards are sold, and the eSIM you can install before you fly.
- Serves
- Bangkok
- Country
- Thailand
- Time zone
- Asia/Bangkok
Free Wi-Fi at BKK
Buying a SIM card after arrivals
All three Thai operators sell tourist SIM cards in international arrivals. True has booths in the visa on arrival area, at baggage claim 8, 11 to 12 and 17, and on the 2nd floor after customs near exits B and C. dtac has counters at exits 7 and 9 and at several baggage claim belts, most open around the clock. AIS sells in the arrivals hall near exit 6. AIS's Traveller SIM costs 299 baht for 15 GB over 8 days (checked October 2026). Bring your passport: True sells one SIM per passport.
eSIM plans for Thailand
Install one at home before you fly and you are online when the wheels touch down, with no queue at a SIM counter.
Mobile networks in Thailand
Thailand's two main mobile operators are AIS and True, which merged with dtac. Both cover Bangkok, Chiang Mai, Phuket and the main islands well. A travel eSIM connects to one of them as a roaming partner, which is why data roaming must be on for the eSIM line. The partner network can differ from plan to plan, so check the plan details, or ask us at support@esimlounge.com before you buy.
Fixed data
One allowance for the whole trip, used at your own pace.
Daily data
A fresh allowance every day, slower above it until the next day.
Unlimited data
No cap on data, with a fair-use speed limit after heavy daily use.
Also covered by Asia Pacific
One eSIM that also works in the other countries of the bundle, for a trip that crosses borders.
See every country in Asia Pacific
Also covered by Global (170 countries)
One eSIM that also works in the other countries of the bundle, for a trip that crosses borders.
See every country in Global (170 countries)
Also covered by Global (75 countries)
One eSIM that also works in the other countries of the bundle, for a trip that crosses borders.
See every country in Global (75 countries)
Compare every Thailand eSIM plan Check your phone supports eSIM
Tips for staying connected
- Carry some baht: a 2026 guide says most AIS kiosks take cash only.
- Avoid open networks with names similar to the official one.
Getting into Bangkok
The taxis, trains and private transfers from BKK into Bangkok are compared on our sister site: Suvarnabhumi Airport on airporttransportation.com
Suvarnabhumi Airport questions
How long is the free Wi-Fi at Suvarnabhumi?
Each session on AOT Airport Free Wi-Fi by NT lasts 60 minutes. You log in with an email address.
Where can I buy a SIM card at Suvarnabhumi?
In international arrivals: True, dtac and AIS have booths in baggage claim and in the arrivals hall after customs. Bring your passport.
How much is a Thai tourist SIM?
AIS's Traveller SIM is 299 baht for 15 GB over 8 days (checked October 2026). Longer plans cost more.