AIS Lucky Tourist SIM Thailand 2026: Plans, Prices and Where to Buy

What Is the AIS Lucky Tourist SIM?

The AIS Lucky Tourist SIM is a prepaid SIM card sold exclusively to international visitors in Thailand. AIS (Advanced Info Service) is Thailand's largest mobile network, operating since 1990, and has been consistently ranked number one for 4G availability, mobile experience and network quality by Opensignal. Lucky Tourist SIM airport counters are positioned in the arrivals halls at four international airports: Suvarnabhumi (Bangkok), Don Mueang (Bangkok), Phuket International and Chiang Mai International, giving AIS the broadest airport footprint of any Thai tourist SIM brand.

The defining advantage of the AIS Lucky Tourist SIM is unlimited data with no cap and no throttle on all main plans. This differs from dtac's Happy Tourist SIM, which caps you at 15 GB or 30 GB and throttles to 384 kbps once you hit the limit. Unlimited data matters most for travellers who stream HD video in the evenings, use their phone as a hotspot for a laptop, or make video calls, uses that can burn through a capped allowance in a few days.

Every AIS Lucky Tourist SIM plan from 5 days upwards also includes: free calls to any AIS number in Thailand; 100 THB bonus call credit for calls to other Thai networks and international calls via the 00300 prefix; Social Apps (Data-Free): popular apps including Facebook, Instagram, WhatsApp, TikTok, LINE and WeChat do not count toward any data limit; and unlimited AIS Super WiFi access at airports, shopping malls and BTS/MRT stations across Thailand.

All AIS Lucky Tourist SIM plans from 5 days to 30 days are available as a physical nano-SIM card at airport and high-street counters, or as a QR-code eSIM purchased online from ais.th. The 60-day plan is physical SIM only. Like all Thai SIM cards, AIS requires passport registration for every activation. At an airport counter, staff complete the registration on the spot and hand you an active SIM in under 5 minutes.

AIS Lucky Tourist SIM Plans and Prices 2026

AIS offers six Lucky Tourist SIM plans, from a one-day option for airport stopovers to a 60-day plan for digital nomads and long-term visitors. All plans from 5 days upwards provide unlimited data at full 4G LTE and 5G speeds with no data cap and no speed throttle throughout the validity period. Prices are in Thai Baht (THB); 1 USD is approximately 34 THB.

AIS prices are higher than dtac's Happy Tourist SIM for the 8-day and 15-day durations: 499 THB versus 299 THB for 8 days, and 699 THB versus 599 THB for 15 days, but AIS provides unlimited data instead of dtac's capped allowances (15 GB and 30 GB respectively). For a traveller using 1–2 GB per day, the capped dtac plan is fine and the saving is real. For anyone streaming Netflix in the evenings or tethering a laptop, AIS's unlimited plan pays for itself in a couple of days.

Source: ais.th. Prices from ais.th, October 2026. Plans expire at the end of the validity period with no auto-renewal. eSIM available for 1-day through 30-day plans at the same price; the 60-day plan is physical SIM only. Every plan includes free AIS network calls, 100 THB bonus credit for other Thai networks and international calls (via 00300 prefix), Social Apps (Data-Free) and unlimited AIS Super WiFi. Plans of 8 days or longer also include free travel insurance (loss of life, personal baggage, flight delay and trip cancellation cover) via Bangkok Insurance; register at ais.th after activation. Dial *121# to check data balance, *121*3# for remaining internet, *545# for your number.

Free travel insurance (up to 30 days) is included with AIS Lucky Tourist SIM plans of 8 days or longer. Source: ais.th

Also available for shorter stays

Where Can I Buy an AIS Tourist SIM in Thailand?

You can buy an AIS Lucky Tourist SIM at four international airports across Thailand, with no pre-order needed. Thai law requires passport registration for every SIM card sold to a foreign national; bring your passport, as counters will not sell without it. Prices are consistent across all purchase points with no airport surcharge.

At the airport

• Suvarnabhumi Airport (BKK): AIS counters are in the B1 international arrivals hall, open 24 hours, 7 days a week. Look for the red AIS logo near the exit before the taxi rank.
• Don Mueang Airport (DMK): AIS counters are in the international arrivals area on the ground floor. Also open 24 hours.
• Phuket International Airport (HKT): AIS has a counter in the international arrivals area. AIS is one of the few tourist SIM brands available at Phuket Airport.
• Chiang Mai International Airport (CNX): AIS counter in the arrivals area. This makes AIS the only major tourist SIM brand counter available at Chiang Mai Airport on arrival.

High street, shopping malls and online

• 7-Eleven and FamilyMart: over 14,000 7-Eleven stores across Thailand stock AIS SIM cards at the same shelf price as the airport counters.
• AIS Shops: found in CentralWorld, MBK Center, Terminal 21, Jungceylon Phuket, Maya Mall Chiang Mai and most major shopping centres. Staff can help with activation issues and plan upgrades.
• Online eSIM from ais.th: purchase before you fly, scan the QR code to install in-flight or on landing. Requires an eSIM-compatible unlocked phone.
• KKday and Klook: third-party travel platforms sell AIS tourist SIM cards with airport pickup at Suvarnabhumi and Phuket. Convenient if you want to pre-book with a credit card before flying, though the airport counter is just as fast.
• TAGTHAi app: AIS occasionally offers a free tourist SIM to new TAGTHAi users (a Thai travel and currency app). Worth checking before you fly if you plan to use the app; availability changes with promotions.

How to Activate Your AIS Lucky Tourist SIM

Thai regulations require every SIM card to be registered with a valid passport. If you buy at an airport counter, staff complete the registration immediately and hand you an active SIM, no further steps required. If you buy from a 7-Eleven or activate an eSIM yourself, registration takes under 5 minutes online.

1. 1Insert the physical nano-SIM or scan the QR code on your eSIM voucher
2. 2Open ais.th in any browser and look for the Tourist SIM registration link
3. 3Switch to English using the language toggle in the top right corner
4. 4Enter your Thai phone number when prompted
5. 5Upload a clear photo of your passport data page (the page with your photo and passport number)
6. 6Complete the facial recognition scan (good lighting helps)
7. 7Your SIM activates within seconds of confirmation. You will receive an SMS when it is ready.

AIS Network Coverage in Thailand

Major cities and beach resorts

AIS operates Thailand's most extensive 4G LTE and 5G network. Coverage is strong throughout Bangkok (all BTS and MRT lines, hotels, malls, Sukhumvit corridor), Chiang Mai city and the surrounding northern region, the entire Phuket island including all resort beaches (Patong, Kata, Karon, Rawai), Pattaya, Hua Hin, Koh Samui and Koh Phangan resort areas, and Krabi town. Opensignal has ranked AIS number one for 4G availability in Thailand in every report since 2019.

Islands and remote areas

On smaller islands, AIS generally provides better coverage than competing networks. Koh Tao has solid 4G in Mae Haad, Sairee Beach and the main dive areas. Koh Lipe has 4G in the main village areas. Koh Chang has good coverage along the western coast resorts. For very remote dive spots and uninhabited islands, no network guarantees coverage; download offline maps with Google Maps or Maps.me before leaving a connected area.

Speed: AIS vs dtac

According to independent speed tests by Opensignal and Speedtest.net, AIS records the highest median download speeds in Thailand on both 4G and 5G. In Bangkok, AIS averages approximately 50–70 Mbps on 4G; in Phuket, 40–60 Mbps. The true | dtac network is competitive in Bangkok and Phuket city centres but trails AIS in rural provinces and on smaller islands. For most tourist itineraries, both networks are fast enough for everyday use. AIS's advantage is most noticeable in rural areas, national parks and during peak evening hours in busy resort towns.

AIS vs dtac: Which Tourist SIM Is Better?

AIS and dtac are Thailand's two main tourist SIM options, and the choice comes down primarily to one question: how much data will you use? AIS Lucky Tourist plans are unlimited with no cap; dtac's Happy Tourist SIM is cheaper but caps you at 15 GB or 30 GB then throttles to 384 kbps. Both brands include calling features and zero-rated social apps in their tourist plans. On network performance, AIS has the clear edge: independently ranked Thailand's fastest and most available 4G network by Opensignal and Speedtest.net.

At a glance: AIS vs dtac tourist SIM

Our recommendation

Physical SIM vs eSIM: Which Is Better for Thailand?

AIS Secure Net blocks harmful and fraudulent sites automatically, included free with the AIS Lucky Tourist eSIM. Source: ais.th

FAQ: AIS Lucky Tourist SIM Thailand