Thailand is one of France’s most popular long-haul destinations — and French travellers are among the most dedicated. In 2024, over 720,000 French visitors travelled to Thailand, surpassing the Tourism Authority of Thailand’s own target [Gavroche Thaïlande, 2024]. With an average stay of nearly 18 nights — the longest of any Western tourist group — French travellers are not just passing through: they explore Bangkok, venture north to Chiang Mai, and unwind on the southern islands all in a single trip.
That extended stay makes mobile data particularly important — and particularly expensive if you are relying on French carrier roaming. Orange, SFR, and Bouygues all charge between €13 and €15 per megabyte of data in Thailand without a specific pass, which means a single Google Maps session could cost you more than an entire week’s worth of Thailand eSIM data.
This guide breaks down exactly what each major French operator charges for roaming in Thailand, how a Thailand eSIM compares, and the right setup to arrange before your flight.
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Why use a Thailand eSIM instead of French carrier roaming?
A Thailand eSIM is a digital SIM you install on your phone before leaving France. It connects automatically to Thailand’s 5G networks — AIS or TrueMove H /dtac — the moment your flight lands in Bangkok, giving you reliable, affordable data without any surprises on your next phone bill.
For French travellers specifically, the advantages are substantial:
- Keep your French number active: Most modern smartphones support dual SIM. Your Orange, SFR, Bouygues, or Free SIM stays in your phone alongside the Thailand eSIM — set it to flight mode and use WiFi Calling to stay reachable for calls home and banking OTPs at zero extra cost.
- Avoid catastrophic per-MB charges: Orange and SFR charge €13–15/MB without a pass. A single 5-minute Google Maps session can cost €3–5. A ThailandeSIM eliminates this risk entirely.
- Built for long stays: French travellers average nearly 18 nights in Thailand — the Unlimited 15-day and 30-day plans are designed exactly for this travel pattern.
- 5G coverage across Thailand: AIS and TrueMove H cover Bangkok, Chiang Mai, Phuket, Koh Samui, Krabi, Pattaya and all major tourist areas at 4G/5G speeds.
- Hotspot included: Share data with travel companions at no extra charge.
eSIM vs Orange vs SFR vs Bouygues vs Free Mobile — Thailand roaming comparison
Thailand is outside the EU roaming zone, so none of the standard “Roam Like At Home” rules apply. Here is a clear breakdown of what each major French operator charges for a 7-day trip to Thailand:
| Provider | Data rate (no pass) | Best pass / option | Cost for 7 days | Source |
|---|---|---|---|---|
| Thailand eSIM | — | 35 GB / 7-day plan | USD $8.90 (∼€8.20) | thailandesim.com, Jun 2026 |
| Orange | ∼€13–14/MB | Pass Voyage 7 jours: ∼€29 | ∼€29 (with pass) | myroami.com, Dec 2025 |
| SFR | ∼€15/MB | Pack Séjour (limited data) | €30–50+ (with pack) | myroami.com, Dec 2025 |
| Bouygues Telecom | ∼€13–14/MB | Pass Internet Voyage: €35 / 5 GB / 10 days | €35 / 5 GB only | myroami.com, Dec 2025 |
| Free Mobile (Forfait 5G) | 35 GB/month included* | No extra pass needed | €0 extra (already €19.99/month) | mobile.free.fr, Jun 2026 |
* Free Mobile Forfait 5G (€19.99/month) includes 35 GB usable in Thailand per month — a notable exception among French operators. Orange, SFR, and Bouygues per-MB rates apply without a specific pass and can reach very high levels very quickly. USD/EUR rate: ∼0.92, June 2026. Carrier rate source: myroami.com, updated Dec 2025.
The contrast is striking. Orange’s best 7-day pass costs ∼€29 — 3.5x more than a ThailandeSIM at ∼€8.20. Bouygues’ Pass Internet Voyage gives you only 5 GB for €35 over 10 days, while a ThailandeSIM delivers 35 GB for less than a quarter of that price.
Bottom line: For an 18-day trip (the French average), a ThailandeSIM Unlimited 15-day plan at ∼€23 (USD $24.90) gives you unlimited 5G data — no daily cap, no throttling, no per-MB surprises.
Free Mobile users: If you are already on the Forfait Free 5G (€19.99/month), you have 35 GB of data included for Thailand each month at no extra cost. For a short trip of under 7 days with moderate use, your existing Free plan may be sufficient. For longer stays, heavier use (streaming, video calls, hotspot), or trips that straddle your monthly billing cycle, a ThailandeSIM Unlimited is a clean, cost-free supplement.
How to get a Thailand eSIM from France – step by step
The whole setup takes under 5 minutes and is best done at home in Paris, Lyon, Marseille, or anywhere in France before your flight:
- Choose your plan based on trip length:
- Short trip (up to 7 days): 35 GB / 7-day plan at USD $8.90 (∼€8.20) — ideal for a week in Bangkok or Phuket.
- Standard French holiday (8–15 days): Unlimited / 15-day plan at USD $24.90 (∼€23) — covers the classic Bangkok + islands + Chiang Mai itinerary.
- Long trip or backpacking (up to 30 days): Unlimited / 30-day plan at USD $44.90 (∼€41).
- Purchase online: Buy at ThailandeSIM.com — pay in USD by Visa, Mastercard, or PayPal. Your French bank converts at the prevailing USD/EUR rate. Your QR code arrives by email within 5–10 minutes.
- Install the eSIM before departure:
- iPhone (XS and later, iOS 16+): Réglages → Données cellulaires → Ajouter une eSIM → Utiliser le code QR → Scan.
- Samsung Galaxy (S21 and later): Paramètres → Connexions → Gestionnaire de carte SIM → Ajouter une eSIM.
- Google Pixel (3 and later): Paramètres → Réseau et Internet → Cartes SIM → Ajouter une eSIM.
- Activate on landing in Thailand: After landing at Suvarnabhumi airport, go to your phone settings and turn on Data Roaming for the ThailandeSIM profile. It connects to TrueMove H or DTAC automatically.
⚠ Important: You can install the eSIM QR code in France before your flight — but only activate it after landing in Thailand. Activating from France will cancel the plan immediately.
Tips for French travellers using a Thailand eSIM
- Keep your French SIM in flight mode: Your Orange, SFR, Bouygues, or Free SIM stays in your phone. Set it to flight mode and enable Appels Wi-Fi (WiFi Calling). Your French number remains reachable for calls and OTPs over hotel or café WiFi at zero roaming cost.
- Free Mobile 5G subscribers — watch your monthly data cycle: Your Forfait 5G includes 35 GB/month in Thailand. If you arrive on the 28th and your quota renews on the 1st, you may have only a few days of included data before needing more. For trips that straddle a billing cycle, a ThailandeSIM Unlimited is the cleaner option.
- Set ThailandeSIM as your default data line: iPhone: Réglages → Données cellulaires → Ligne par défaut. Android: Paramètres → Gestionnaire de carte SIM → Données mobiles.
- French travellers average 18 nights in Thailand: The Unlimited 15-day plan at ∼€23 fits the typical French itinerary (Bangkok → north or islands → back to Bangkok). For trips over 15 nights, choose the 30-day Unlimited.
- Coverage across Thailand is excellent: Bangkok, Chiang Mai, Phuket, Koh Samui, Koh Phangan, Pai, Krabi and Koh Lanta all have strong 4G/5G coverage. Very remote national park areas may have limited signal, but the main tourist circuit is well served.
Frequently asked questions
Can I use a Thailand eSIM on a phone bought in France?
Yes, provided your phone supports eSIM and is carrier-unlocked. Most flagship phones sold in France support eSIM, including iPhone XS and later, Samsung Galaxy S21 and later, and Google Pixel 3 and later. Phones purchased on a plan from Orange, SFR, or Bouygues may be SIM-locked for the first 3 months of the contract — contact your operator to confirm. Free Mobile does not SIM-lock its devices.
Is a Thailand eSIM cheaper than Orange or SFR roaming?
Significantly. Without a pass, Orange and SFR charge €13–15 per megabyte — enough to generate a €15 charge in just a few minutes of normal browsing. Even with the best available pass, Orange’s 7-day option costs ∼€29. A ThailandeSIM costs just ∼€8.20 (USD $8.90) for 35 GB of high-speed data — 3.5x cheaper, with far more data included.
I am on Free Mobile’s Forfait 5G — do I still need a Thailand eSIM?
Not necessarily for short trips. Free Mobile’s Forfait 5G (€19.99/month) includes 35 GB/month usable in Thailand — one of the best roaming allowances offered by any French operator. For a 7-day trip with moderate data use, your Free plan may be sufficient. For longer stays (the French average is 18 nights), heavy data users, or trips that straddle your monthly billing cycle, a ThailandeSIM Unlimited provides peace of mind with no data anxiety.
Ready to explore Thailand without the phone bill?
Set up your Thailand eSIM before your flight from Paris, Lyon, or Marseille – instant QR delivery, installs in minutes, and activates automatically when you land in Bangkok.