Best eSIM guide · 2026
Best eSIM for Cheapest eSIM for Thailand (2026): Full Comparison
5 providers scored across coverage, pricing, speed, app quality, and support. All data verified June 2026.
The comparison
eSIM providers compared for Cheapest eSIM for Thailand
All 5 providers ranked by weighted composite score. Color-coded by value.
| Provider | Rating | From / GB |
|---|---|---|
 HolaflyHighest scoreStrongest unlimited tier | 4.3 / 5 | $2.99/day |
 AiraloTop composite rating | 4.5 / 5 | $4.50/GB |
 HelloRoam | 4.3 / 5 | from $3.50/GB |
 SailyLeading privacy integration | 4.2 / 5 | $3.99/GB |
 NomadMost competitive per-GB rates | 4.2 / 5 | $3.00/GB |
Prices verified June 2026. Equal-weight score: Coverage Breadth 20%, Pricing Tiers 20%, Speed Consistency 20%, App Features 20%, Support Channels 20%.
Feature matrix
Spec-by-spec breakdown for Cheapest eSIM for Thailand
Every measurable dimension compared side by side.
| Feature | Holafly | Airalo | HelloRoam | Saily | Nomad |
|---|---|---|---|---|---|
| Overall Rating | 4.3/5 | 4.5/5 | 4.3/5 | 4.2/5 | 4.2/5 |
| Countries | 178+ | 200+ | 186+ | 150+ | 112+ |
| Starting Price | $2.99/day | $4.50/GB | from $3.50/GB | $3.99/GB | $3.00/GB |
| Per-GB Floor | $2.99/day | $4.50 | $3.50 | $3.99 | $3.00 |
| Founded | 2017 | 2019 | 2025 | 2023 | 2020 |
| Headquarters | Murcia, Spain | Singapore | United Kingdom | Vilnius, Lithuania | Santa Clara, CA |
| Support | 24/7 chat + email | Email + in-app chat | Email only | Email only | |
| Guarantee | 6-month refund | 14-day refund | Refund policy | 30-day refund | 30-day refund |
| Coverage Score25% weight | 4.3/5 | 4.9/5 | 4.5/5 | 4.0/5 | 3.9/5 |
| Pricing Score25% weight | 4.5/5 | 4.1/5 | 4.4/5 | 4.0/5 | 4.8/5 |
| Speed Score20% weight | 4.2/5 | 4.4/5 | 4.3/5 | 4.4/5 | 4.3/5 |
| App Score15% weight | 4.1/5 | 4.7/5 | 4.2/5 | 4.5/5 | 3.9/5 |
| Support Score15% weight | 4.7/5 | 4.2/5 | 4.1/5 | 4.1/5 | 3.9/5 |
| Weighted Composite | 4.35/5 | 4.45/5 | 4.30/5 | 4.20/5 | 4.15/5 |
Score breakdown
Provider scores for Cheapest eSIM for Thailand
Weighted composite score across 5 dimensions.
Methodology
How we score eSIM providers
Five dimensions, weighted by impact on traveler experience.
Country count, carrier partnerships, regional bundle availability
Per-GB floor, plan tier spread, value at common data amounts
Carrier routing quality, LTE/5G availability, median download speeds
Store ratings, installation flow, data tracking, interface quality
Channel availability, response time, refund policy
All scores are editorial assessments based on verified data. Pricing checked weekly. See our full scoring methodology for details.
Holafly -- Best Unlimited Data
Holafly's unlimited plan starts at $2.99/day, half a dollar under Thailand's own $3.49/day local unlimited reference, and its 2GB daily volume covers a full day of maps, messaging, and moderate streaming against Thailand's 130 Mbps average download speed. Its 24/7 chat support is a relevant spec on an island-hopping itinerary where True Move H coverage can thin out.
Pros
- Unlimited daily data from $2.99/day with no data caps
- 178+ countries covered including all major destinations
- Simple per-day pricing: know exactly what you pay before you leave
- 6-month refund policy on unused plans
- 24/7 chat support with fast response times
Cons
- Speeds reduce to 256 Kbps-1 Mbps after daily fair use threshold on most plans
- Hotspot tethering limited to 1 GB/day on select destinations
- Not cost-effective for light data users (under 3 GB/trip)
- Fewer countries than Airalo
Airalo -- Best Overall Coverage
Airalo's $4.50/GB rate is the highest of the four fixed-rate options for Thailand, more than fifteen times the country's own $0.29/GB floor, a wider gap than any other destination in this ten-country batch. Its Asialink regional bundle and 200-plus-country footprint suit a Thailand stop paired with a wider Southeast Asia itinerary more than a Thailand-only trip.
Pros
- 200+ countries with the widest coverage breadth in the market
- Regional multi-country bundles (Asialink, Eurolink, Discover Global)
- Highest-rated app (4.8/5 iOS, 4.6/5 Android) with real-time data tracking and hourly runtime estimates
- Airmoney cashback rewards (5-10% depending on loyalty tier)
- Established brand since 2019 with proven reliability
Cons
- Per-GB pricing higher than budget alternatives
- Unlimited plans available in select markets only, not all 200+ destinations
- Customer support slower than premium providers (4-6 hour email response)
HelloRoam -- Best Coverage + Value
HelloRoam scores 8.6/10 overall and prices Thailand plans from $3.50/GB, the second-lowest fixed rate among the four compared and still more than ten times Thailand's own $0.29/GB reference floor. Its 204+ carrier partnerships route through AIS or DTAC directly, both of which run Thailand's 5G networks per the core country data.
Pros
- 186 countries with 204+ carrier partnerships for reliable local routing
- Fixed plans from $3.50/GB across popular destinations
- Unlimited plans from $5 for short stays, scaling by duration
- 31+ local currencies supported at checkout
- 63-language interface for non-English travelers
Cons
- Email-only support with 12-24 hour response times
- Newer brand (launched August 2025) with shorter track record
- App store ratings still building compared to Airalo
Saily -- Best for Privacy
Saily prices Thailand plans from $3.99/GB and bundles a NordVPN connection into every plan, a useful spec given enrichment notes flag some gambling and lese-majeste content blocked at the ISP level regardless of eSIM provider. Its 150-country footprint covers Thailand and the wider region, though its per-GB rate still runs well above Nomad's $3.00/GB Southeast Asia rate.
Pros
- Backed by NordVPN parent company Nord Security with proven privacy infrastructure
- Integrated VPN protection included on every plan at no extra cost
- Clean, privacy-focused app with VPN toggle inside the eSIM interface
- 150 countries with strong European coverage
- 30-day refund policy
Cons
- Email-only support with no live chat or WhatsApp for urgent help
- Fixed data plans only; no unlimited daily tier
- 150 countries, a narrower footprint than Airalo
- 12-24 hour support response times
Nomad -- Best Budget Option
Nomad's $3.00/GB rate is the lowest of the four fixed-rate options and the closest to Thailand's own $0.29/GB floor, consistent with Nomad's own coverage narrative naming Thailand among its strongest Southeast Asia markets. Its 112-country footprint is the narrowest of the five providers, a real trade-off only if a Thailand trip continues outside the region.
Pros
- Competitive pricing starting from $3.00/GB in Southeast Asia
- Simple, fast checkout with no account required in many cases
- Lowest per-GB rates for Thailand, Vietnam, South Korea, and Japan
- Plans start at a low entry price for short trips
Cons
- Email-only support with 24-48 hour response times
- Basic app compared to Airalo and Saily
- 112 countries, the narrowest footprint among the five providers
- Limited plan variety in some countries
FAQ
Frequently asked questions about eSIMs for Cheapest eSIM for Thailand
Which eSIM is cheapest for Thailand?
Which eSIM is cheapest for Thailand?
Nomad's $3.00/GB is the lowest of the four fixed-rate providers compared for Thailand, matching Nomad's own claim to Southeast Asia as a strength market. Thailand's own $0.29/GB reference floor in this comparison's country data is still the cheapest of all 213 destinations tracked, well under every compared provider's rate.
Why is Thailand's own mobile data so cheap?
Why is Thailand's own mobile data so cheap?
Enrichment notes attribute it to three-way carrier competition between AIS, True Move H, and DTAC, with a local 7-Eleven SIM at 299 THB ($8) offering unlimited data for 8 days, roughly 60% cheaper than most travel eSIM providers in this comparison. That local rate requires a passport and biometric selfie to activate, a step the five compared eSIMs skip.
Does Thailand have 5G everywhere?
Does Thailand have 5G everywhere?
No. This comparison's enrichment data lists Thailand's 5G coverage as urban-only, reaching Bangkok, Chiang Mai, Pattaya, and Phuket, with rural areas and smaller islands running on 4G through whichever of the five compared providers' carrier a traveler's eSIM routes through.
Compare all 5 providers for Cheapest eSIM for Thailand
Side-by-side scoring. Plans from $2.99/day to $4.50/GB. Verified June 2026.