Best eSIM for Réunion
Réunion is a French overseas department and EU outermost region, so EU Roam Like at Home applies here as in metropolitan France. The mountain interior — the Cirque de Mafate and high lava plateau — has no signal on any network; download all offline content before any interior hiking.
Last checked: October 2026. Plans and prices change — verify before purchase.
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How much will it cost for your trip?
Your French SIM works in Réunion with no roaming charges. Other EU SIM holders benefit from RLAH. Réunion has some of the world's most intense hiking — the three calderas (Cilaos, Mafate, Salazie) are accessible only on foot. The Plaine des Sables plateau and Piton de la Fournaise crater area have very limited or no signal. Cirque de Mafate — accessible only by foot or helicopter — has no mobile coverage. Download offline maps and emergency contacts before any multi-day hike.
Saint-Denis, Saint-Paul, Saint-Pierre and all coastal areas have excellent 4G. The three cirques (Cilaos, Salazie, Mafate) have coverage in the main villages accessed by road but Mafate (foot access only) is completely offline. The Piton de la Fournaise approach road and the crater itself have no reliable signal. Download topographic maps (Réunion has excellent IGN map coverage on Organic Maps) before any caldeira or volcano hike.
Prices sourced from provider websites. Network information sourced from provider documentation and independent travel guides (2026).
eSIM — Reunion
Network coverage in Réunion
Réunion has four mobile operators: Orange Réunion (widest coverage), SFR Réunion, Free Réunion and Telco OI. 4G is available across the full coastal ring — Saint-Denis, Le Port, Saint-Gilles-les-Bains, Saint-Pierre and the east coast. 5G is being deployed, with Orange and Telco OI leading. Réunion is a French overseas region — EU Roam Like Home applies for EU/EEA SIM cards.
In the interior — the Cirques de Mafate, Cilaos and Salazie — coverage drops significantly on all operators due to terrain. Mafate (car-free) has very limited signal. Orange has the widest mountain footprint. The travel eSIMs here — Airalo, Roamless, aloSIM, Saily and Yesim — use local networks without naming the specific carrier; coverage on the coastal ring is reliable on any of them. One caveat: confirm your plan explicitly lists Réunion — some "France" eSIM plans cover only metropolitan France, not the overseas departments.
Where are you travelling from? Does your plan cover this destination?
All AT&T plansPlan data / 1 day: US$12; plan data / 30 days: US$120.Get an eSIM.
Unlimited UltimateIncluded in the plan.Keep your plan.
Unlimited Plus, Unlimited Welcome5 GB / 1 day: US$12; 20 GB / 30 days: US$100.Get an eSIM.
Experience Beyond (Go5G Next) · Experience More (Go5G Plus, Magenta MAX)Included in the plan.Keep your plan.
Essentials2 GB / 1 day: US$10; 15 GB / 10 days: US$50; 30 GB / 30 days: US$75.Compare: the pass may be enough.
Full Works (2024+)Included in the plan.Keep your plan.
Other EE plansPlan data / 1 day: £2.72; plan data / 7 days: £16.50; plan data / 12 days: £27.50.Compare: the pass may be enough.
All O2 plansIncluded in the plan.Keep your plan.
Global Roam (Xtra) · Euro RoamIncluded in the plan.Keep your plan.
Other Vodafone plansPlan data / 1 day: £2.75; plan data / 8 days: £16; plan data / 15 days: £21.Compare: the pass may be enough.
EssentialIncluded in the plan.Keep your plan.
AdvancedPlan data / 1 day: £2.Compare: the pass may be enough.
All TELUS plansPlan data / 1 day: CA$18.Get an eSIM.
All Bell plans5 GB / 1 day: CA$16; plan data / 14 days: CA$100; plan data / 30 days: CA$120; plan data / 30 days: CA$320.Get an eSIM.
All Rogers plansPlan data / 1 day: CA$18; plan data / 3 days: CA$45; plan data / 7 days: CA$75; plan data / 14 days: CA$100; +1 more.Get an eSIM.
All Vidéotron plansNo pass: pay as you go. (figure not confirmed by an official source)Get an eSIM.
All Telstra plansPay as you go: A$3/MB.Get an eSIM.
All Optus plansPay as you go: A$1/MB.Get an eSIM.
All Vodafone (TPG) plansPay as you go: A$1/MB.Get an eSIM.
All Vodafone Ireland plansIncluded in the plan.Keep your plan.
All Three Ireland plansIncluded in the plan.Keep your plan.
All eir plansIncluded in the plan.Keep your plan.
Roaming or eSIM — should you buy?
Arrival protocol in Reunion
VPN, passwords and documents
On hotel or café Wi-Fi, a VPN can be useful to keep your browsing private from the network operator. A password manager is also worth having for managing account access on the road. A secure cloud backup of your passport, visa and accommodation details can also be useful — keep an offline copy too. None of these are mandatory.
Mistakes to avoid in Reunion
Continuing your trip in the Indian Ocean?
Many travellers combine Reunion with neighbouring countries. See our guides for eSIM in Mauritius and eSIM in Madagascar. For multi-country trips combining Reunion with neighbouring destinations in the Indian Ocean, our global regional plan comparison may be useful.