Thailand has great mobile coverage across Bangkok, Chiang Mai, Phuket and the islands. Skip the airport SIM queue at Suvarnabhumi and get online instantly with an eSIM.
Updated March 2026
Sawasdee — 3 GB
Airalo's Thailand plans are excellent value, running on the AIS and DTAC networks with strong coverage across the country, including most islands.
Get this dealSide-by-side comparison of the best eSIM deals for Thailand. Sorted by price.
| Provider | Plan | Data | Validity | Price | Price/GB | Network | |
|---|---|---|---|---|---|---|---|
| Best Deal Airalo | Sawasdee 3GB | 3 GB | 30 days | £4.50 | £1.50 | AIS / DTAC | View |
| Airalo | Sawasdee 10GB | 10 GB | 30 days | £10.00 | £1.00 | AIS / DTAC | View |
| Holafly | Thailand Unlimited | Unlimited | 7 days | £19.00 | N/A | DTAC | View |
| Saily | Thailand 5GB | 5 GB | 14 days | £6.49 | £1.30 | AIS | View |
| Ubigi | Thailand 3GB | 3 GB | 30 days | £7.00 | £2.33 | AIS | View |
| MobiMatter | Thailand 5GB | 5 GB | 15 days | £7.00 | £1.40 | DTAC | View |
Common questions about using an eSIM in Thailand.
Airalo offers the cheapest Thailand eSIM starting at £4.50 for 3 GB. Their 10 GB plan at £10.00 is also incredible value at just £1.00 per GB.
Yes, coverage on major islands like Phuket, Koh Samui, Koh Phangan, and Koh Tao is generally good. Very remote or small islands may have limited connectivity.
An eSIM is much more convenient. You avoid the queues at airport SIM counters, get connected instantly, and can often find better prices online. Physical SIMs at Suvarnabhumi are competitively priced but the convenience of eSIM wins.
For 2 weeks of regular use including maps, messaging, and social media, 5-10 GB is ideal. If you are in Bangkok and will use ride-hailing apps like Grab frequently, lean towards 10 GB.
Yes, Grab works perfectly with eSIM data in Thailand. You can book rides, food delivery, and more just as you would with a local SIM.
Yes, 5G is available in Bangkok and some other major cities in Thailand. However, most eSIM plans connect to 4G LTE networks, which are more than fast enough for typical travel use.