SIM Cards and Internet in Argentina: Staying Connected on the Ruta 40 and in Patagonia

An Argentina road trip, especially in Patagonia or the Andean Northwest, runs on distances few European travellers plan for correctly: reckon on 400 to 500 km, sometimes more, between two towns with a reliable fuel station. On these stretches, an offline navigation app (Maps.me, Google Maps with downloaded maps) is not a comfort but a necessity, since mobile signal fades as soon as the road leaves the larger towns.

The network also covers more urgent needs: reconfirming a booking at a remote estancia, checking whether a track is passable after a windstorm — the Patagonian wind can close whole stretches of the Ruta 40 without warning — or simply reporting an incident to the rental company or the emergency services. On this last point, the scientific literature documents a direct link between isolation and crash severity: a study by Richard Gonzalez and co-authors, published in 2009 in the American Journal of Surgery, compared more than 45,000 road crashes in a US state and found that mortality from rural crashes, nearly double that seen in urban ones, rose with the time it took emergency services to reach the scene (study available on Google Scholar: scholar.google.com/scholar?q=Gonzalez+Cummings+Phelan+Mulekar+Rodning+2009+prehospital+time+mortality+rural+motor+vehicle+crashes). On the Ruta 40, where the nearest police post or hospital can be more than an hour away on dirt roads, being able to make a call at the right moment is not a minor detail.

France’s four carriers now treat Argentina fairly generously. Free includes the country in the roaming zone of its 350 Go 5G plan: 35 Go usable at no extra cost across more than 110 destinations, Argentina included, from €19.99/month (€9.99 for Freebox subscribers). Since 31 March 2026, the carrier has also offered Free Max, the first French plan to include unlimited data abroad across 118 destinations including Argentina, at €29.99/month (€19.99 for Freebox subscribers).

Orange covers the country through its Pass Évasion 2 (up to 5 Go of data, around €29) and its Voyage plan, which adds 40 Go a month usable across roughly forty destinations outside Europe, Argentina included. RED by SFR includes 35 Go of roaming in its 350 Go 5G plan, usable across more than 120 destinations including Argentina. Bouygues Telecom offers an Internet Travel Pass of 5 Go, active in around a hundred countries including Argentina, or a more generous option on some higher-tier 5G plans.

As usual with roaming, it is worth checking the exact terms on your carrier’s account page just before departure: allowances and covered destinations shift from one year to the next.

At Ministro Pistarini International Airport (EZE), in Ezeiza near Buenos Aires, Personal is the only carrier with a shop in the arrivals area, facing check-in counter 40 — handy for leaving the airport already connected, but it only accepts card payment, a pricier option than buying in town. Claro and Movistar have no counter at the airport itself: their nearest shops are in Buenos Aires shopping malls or in the larger towns visited afterwards (Bariloche, El Calafate, Salta).

A bare SIM card costs roughly ARS 500 to 2,000 depending on the carrier, plus a tourist data bundle: Claro’s "Chip Turista" offers around 25 Go valid for 30 days, with unlimited WhatsApp and social media, for about $15. Movistar’s plans run around 5 Go for 30 days, at roughly ARS 6,000. Claro is generally cited as having the widest coverage, both urban and rural, a real consideration for anyone planning to drive far from the main roads. A passport is always required to register the line, whichever carrier you choose.

To skip the counter queue on arrival, a tourist eSIM activates from an app before you even board. Airalo offers Argentina plans from around $6 for 1 Go over 7 days, up to $49 for 20 Go over a month. Holafly focuses on unlimited data, with a plan around $36 for seven days, a comfortable option for anyone planning to run GPS continuously without watching their data usage.

This kind of eSIM mainly covers the airport-to-rental-counter leg and the first few days in Buenos Aires; nothing stops you switching to a local Claro or Movistar SIM afterwards if the route heads into Patagonia or the Andean Northwest.

Argentine mobile coverage is close to complete in towns, but drops off fast beyond them. On the Ruta 40, the legendary road that runs along the Andes for over 5,000 km, some stretches of the Patagonian steppe, particularly between Río Gallegos, Perito Moreno (the town) and Bajo Caracoles, run 200 to 300 km without a single bar of signal: it is worth treating your phone as a purely offline tool between fuel stops, with maps downloaded and the tank filled well in advance.

The Patagonian wind adds a variable few other self-drive destinations share: even in areas normally covered, a strong gust can sometimes temporarily degrade the signal, a phenomenon regularly reported by travellers on this stretch of road. Around El Chaltén, El Calafate and the Perito Moreno glacier, coverage stays good in the villages and at the park entrances, but disappears quickly on secondary tracks and on the hikes around them, where a satellite communication device (such as a Garmin inReach) remains the only reliable option for anyone straying off marked trails.

National Traffic Law No. 24,449 bans holding a phone while driving: article 48, paragraph k, classifies it as a serious offence. Only a single-ear hands-free device is allowed; two earbuds that block outside noise are prohibited, since they prevent hearing horns and sirens. The offence applies whether the vehicle is moving or simply stopped at a light, as long as it is on the road.

The fine amount varies by jurisdiction: each province calculates its penalty in fixed units (UF), periodically revised for inflation, so in 2026 it ranges from around ARS 7,500 in some provinces to the equivalent of 100 UF (tens of thousands of pesos) in the City of Buenos Aires. A roadside check during a car rental, common on the outskirts of major cities, is best handled with a dashboard mount and voice guidance rather than a phone in hand, especially since the Ruta 40’s distances leave plenty of time to plan the route before setting off.

A few things worth checking before hitting the road:

Staying connected is only one piece of preparing an Argentina road trip: choosing a vehicle suited to the ripio tracks ahead, timing the itinerary between Patagonia’s high season and the quieter months, and the possible crossing into Chile by rental car all deserve just as much thought before you set off.