Cheapest eSIM for Thailand in 2026
Price Summary:
HelloRoam offers the cheapest Thailand eSIM at $0.29/GB (50GB, 7 days, $14.38 total). Next cheapest: HelloRoam at $0.80/GB. Airport SIM kiosks charge $8-23 for unlimited data / 7-15 days. 7 providers compared. Prices verified May 2026.
Every plan, cheapest first
| # | Provider | $/GB ↑ | Plan | Total | Network | Days | 30d | Action |
|---|---|---|---|---|---|---|---|---|
| 🥇 |  HelloRoamCheapest | $0.29 | 50GB | $14.38 | True Move | 7d | ↑ | Get HelloRoam plan → |
| 🥈 | HelloRoam | $0.80 | 20GB | $15.99 | AIS | 30d | ↑ | Get HelloRoam plan → |
| 🥉 | HelloRoam | $0.96 | 50GB | $48.00 | AIS | 30d | ↑ | Get HelloRoam plan → |
| 4 | HelloRoam | $1.00 | 10GB | $9.97 | AIS | 30d | ↑ | Get HelloRoam plan → |
| 5 | HelloRoam | $1.40 | 5GB | $6.99 | AIS | 30d | ↑ | Get HelloRoam plan → |
| 6 | HelloRoam | $1.66 | 3GB | $4.99 | AIS | 30d | ↑ | Get HelloRoam plan → |
| 7 | HelloRoam | $3.49 | 1GB | $3.49 | AIS | 7d | ↑ | Get HelloRoam plan → |
Prices verified May 28, 2026. Updated weekly from provider websites.
Pick by how much data you need
Unlimited daily data price breakdown
The cheapest unlimited daily data plan for Thailand. Longer trips get automatic volume discounts. The table below shows what you pay at each duration.
| Duration | Per day | Total | Discount |
|---|---|---|---|
1 day | $3.35/day | $3.35 | 4% off |
3 days | $3.21/day | $9.63 | 8% off |
7 days | $3.21/day | $22.48 | 8% off |
2 weeks | $3.11/day | $43.49 | 11% off |
30 daysBest Value | $2.86/day | $85.85 | 18% off |
Thailand eSIM market rates
Thailand has 7 eSIM plans from 1 provider, ranging from $0.29/GB to $3.49/GB. Median per-GB across all 7 plans is $1.00/GB. The per-GB spread is $3.20, meaning the priciest plan costs 1113% more per gigabyte than the cheapest.
Who sells eSIMs for Thailand
HelloRoam leads Thailand with 7 plans, starting at $14.38 ($0.29/GB, 50GB, 7 days). HelloRoam plans support top-up and tethering. Across all providers, hotspot tethering and top-up support are available — check individual plans for eligibility.
The airport markup
Airport SIM kiosks at Thailand charge $8-23 for unlimited data / 7-15 days for tourist data plans. AIS and True Move H and DTAC operate the airport kiosks. Local prepaid SIMs are available for $5-15 for 10-30GB / 7-30 days — requiring a physical store visit and, in some cases, passport registration. An eSIM from $14.38 activates before you land and skips the queue.
Daily cost compared
Thailand eSIM pricing signals
7 of 7 plans for Thailand are trending up — most providers have raised prices recently. The current cheapest plan is HelloRoam at $0.29/GB ($14.38 for 50GB, 7 days).
Best plan for each trip length
Use-case picks for Thailand based on plan data: Weekend (2-3 days): HelloRoam 3GB at $4.99 (3GB, 30 days). Week trip (7 days): HelloRoam 5GB at $6.99 (5GB, 30 days). Two-week vacation: HelloRoam 10GB at $9.97 (10GB, 30 days). Digital nomad (30 days): HelloRoam 20GB at $15.99 (20GB, 30 days).
Data usage guide for Thailand
Travelers in Thailand typically use 1.8GB of mobile data per day. WiFi availability is excellent — free WiFi is common in hotels, cafes, and public spaces. Free WiFi in most cafes, co-working spaces, and 7-Elevens; Thailand ranks among top global WiFi speeds at 261 Mbps average Peak travel season runs Nov-Feb and Jul-Aug. Cool dry season (November-February) is peak; European summer holidays bring second wave July-August For a 7-day trip, expect to need roughly 13GB. The 50GB plan from HelloRoam ($14.38, 50GB) covers that usage.
Thailand mobile networks
Thailand's primary carriers are AIS and True Move H and DTAC. 5G coverage is urban-only. Median download speed is 130 Mbps. True and DTAC merged in 2023 — now offer identical tourist plans under both brands. Grab requires a phone number for registration; works with international numbers but local number recommended. Emergency number: 191/1669.
Where to buy Thailand eSIM
What Is an eSIM for Thailand?
An eSIM for Thailand is a prepaid digital SIM card with no physical component. The cheapest Thailand eSIM costs $0.29/GB — up to 80% less than airport SIM counters. You purchase online, scan a QR code, and connect to local 4G/5G networks in under 2 minutes.
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