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Backpacking Thailand for 30 days: cheapest eSIM options
Prices checked 17 October 2026 · Sources linked in every row
Who this is for
A month on a budget: hostels with Wi-Fi, maps, ride-hailing apps, messaging and social media on mobile data.
How much data you'll probably need
Budget use outside Wi-Fi (2 h maps, 1 h social, 1 h browsing, 30 min calls) is around 0.23 GB per day, about 7–8 GB for 30 days with a 15% buffer. Your number may be very different, so run your own estimate in the data calculator.
Plans that fit this trip (sorted by price)
| Provider | Data | Validity | Price (USD) | Per day | Notes / source |
|---|---|---|---|---|---|
| Saily | 5 GB | 30 days | $7.99 | $0.27 | source |
| Airalo | 5 GB | 30 days | $8.00 | $0.27 | source |
| Saily | 10 GB | 30 days | $10.99 | $0.37 | source |
| Airalo | 10 GB | 30 days | $11.00 | $0.37 | source |
| Airalo | 20 GB | 30 days | $18.00 | $0.60 | source |
| Saily | 20 GB | 30 days | $19.99 | $0.67 | source |
| Saily | Unlimited (5 GB/day full speed) | 30 days | $48.99 | $1.63 | from Saily's comparison table (prices collected by Saily in July 2026) source |
| Airalo | Unlimited | 30 days | $49.00 | $1.63 | source |
| Holafly | Unlimited | 30 days | $73.90 | $2.46 | source |
Prices checked on 17 October 2026 on the providers' own websites. Prices in USD as displayed on each provider's public website on 17 October 2026 (fetched from Europe). Providers can show different prices or currencies by location, and they change prices and run promotions often. Always confirm the price at checkout.
Our take
On captured prices, 10 GB for 30 days costs $10.99 (Saily) or $11.00 (Airalo); 20 GB is $18.00–$19.99. Thirty-day unlimited plans cost $48.99–$73.90. Fixed plans win clearly unless you work online.
How this page was made: we compared the prices and terms that each provider publishes on its own website. We have not tested these eSIMs ourselves on this trip type, and we do not report speed or coverage results. For coverage, check each provider's network list and your phone's eSIM compatibility before buying.
Plan details to know
- Airalo: Unlimited plans and fixed-data plans. Check each package's details on Airalo for fair-use or speed terms; we did not find them stated on the country page.
- Saily: Saily's 'Unlimited' plans give 5 GB per day at full speed, then up to 1 Mbps for the rest of the day (per Saily's country pages). Fixed-data plan cards list several validity options; the card price shown may correspond to one of them. Saily's own FAQ text quotes some different figures, so confirm the price for your chosen validity at checkout.
- Holafly: Unlimited data plans by number of days. Hotspot sharing is limited to 1 GB per day (per Holafly's pages). Data only, no local phone number.
Full price list for Thailand (all plans we captured)
| Provider | Data | Validity | Price (USD) | Per day | Notes / source |
|---|---|---|---|---|---|
| Airalo | 1 GB | 3 days | $4.00 | $1.33 | source |
| Airalo | 3 GB | 3 days | $5.50 | $1.83 | source |
| Airalo | 3 GB | 7 days | $6.00 | $0.86 | source |
| Airalo | 5 GB | 7 days | $7.00 | $1.00 | source |
| Airalo | 5 GB | 15 days | $7.50 | $0.50 | source |
| Airalo | 5 GB | 30 days | $8.00 | $0.27 | source |
| Airalo | 10 GB | 7 days | $10.00 | $1.43 | source |
| Airalo | 10 GB | 15 days | $10.50 | $0.70 | source |
| Airalo | 10 GB | 30 days | $11.00 | $0.37 | source |
| Airalo | 20 GB | 15 days | $17.50 | $1.17 | source |
| Airalo | 20 GB | 30 days | $18.00 | $0.60 | source |
| Airalo | 50 GB | 30 days | $27.50 | $0.92 | source |
| Airalo | Unlimited | 3 days | $9.50 | $3.17 | source |
| Airalo | Unlimited | 5 days | $15.00 | $3.00 | source |
| Airalo | Unlimited | 7 days | $21.00 | $3.00 | source |
| Airalo | Unlimited | 10 days | $31.00 | $3.10 | source |
| Airalo | Unlimited | 15 days | $39.00 | $2.60 | source |
| Airalo | Unlimited | 30 days | $49.00 | $1.63 | source |
| Holafly | Unlimited | 3 days | $11.90 | $3.97 | source |
| Holafly | Unlimited | 5 days | $20.50 | $4.10 | source |
| Holafly | Unlimited | 7 days | $27.50 | $3.93 | source |
| Holafly | Unlimited | 10 days | $36.50 | $3.65 | source |
| Holafly | Unlimited | 15 days | $50.50 | $3.37 | source |
| Holafly | Unlimited | 30 days | $73.90 | $2.46 | source |
| Saily | 1 GB | 7 days | $2.99 | $0.43 | source |
| Saily | 3 GB | 30 days | $5.99 | $0.20 | source |
| Saily | 5 GB | 30 days | $7.99 | $0.27 | source |
| Saily | 10 GB | 30 days | $10.99 | $0.37 | source |
| Saily | 20 GB | 30 days | $19.99 | $0.67 | source |
| Saily | Unlimited (5 GB/day full speed) | 15 days | $38.99 | $2.60 | source |
| Saily | Unlimited (5 GB/day full speed) | 30 days | $48.99 | $1.63 | from Saily's comparison table (prices collected by Saily in July 2026) source |
Prices checked on 17 October 2026 on the providers' own websites. Prices in USD as displayed on each provider's public website on 17 October 2026 (fetched from Europe). Providers can show different prices or currencies by location, and they change prices and run promotions often. Always confirm the price at checkout.
Before you buy
- Check that your phone supports eSIM and is not carrier-locked (each provider has a compatibility list).
- Install the eSIM on Wi-Fi before you fly; turn on data roaming for the eSIM line on arrival.
- Download offline maps of the places you'll visit to cut data use.