Internet in Argentina: the exchange rate and Patagonia

Argentina has become an easier country to pay in and no easier to cross. The first because the currency mess that forced travellers to carry wads of dollars has deflated; the second because the distances are what they are, and in Patagonia there are stretches of road where you will not see a single bar for hours. This guide covers both: why you need data to pay well, and where you will not have it.

Why you need data to pay well in Argentina

For years the answer was “bring dollars in cash and change them on the street”. That has changed, and it is worth knowing before packing a brick of notes.

Currency controls for individuals were lifted in April 2025, and since then the gap between the official and parallel dollar has narrowed to barely a couple of percentage points by mid-2026. Translated: changing money at a cueva now returns you almost nothing over paying by card, and carries the same old risk.

What does make you money today is something else: the 21 % VAT refund on accommodation. Foreign tourists who pay for a hotel, hostel or apartment with a card issued outside Argentina, or by transfer from abroad, get that VAT back automatically. There is no counter and no form: it applies by itself if the payment is made that way. Paying for accommodation in cash means giving up a 21 % discount.

Which is why data here is not a luxury: you need it to book and pay in the app rather than at the desk, to check the day’s rate before using an ATM, and to keep your card to hand in a country where cash has stopped being king. It is the destination where carrying internet pays for itself fastest.

And a warning with an expiry date: all of this is the picture as of mid-2026. Argentina changes its currency rules often, so confirm before you fly.

Real coverage: who covers what, and where it ends

Three networks: Personal, Claro and Movistar. They come out of a consolidation process that regulators approved in 2026 with conditions precisely so that three would remain, so the map may shift; for a traveller, for now, little changes. 5G exists but is heavily concentrated in Buenos Aires and a few provincial capitals: what you will use is 4G.

Good: Buenos Aires, Córdoba, Rosario, Mendoza, Salta, Bariloche, Ushuaia, El Calafate, Puerto Iguazú and the national routes through the centre of the country.

Where it ends:

• Ruta 40 in Santa Cruz: the stretches between Tres Lagos, Gobernador Gregores and Bajo Caracoles are hours without signal. That is also where the remaining unpaved gravel sits.
• Península Valdés: no coverage on almost the whole circuit; Puerto Pirámides is the only reliable point.
• National parks: El Chaltén has signal in the village and none on the trails to Fitz Roy or Cerro Torre; Los Glaciares, the same.
• Quebrada de Humahuaca: fine in Purmamarca, Tilcara and Humahuaca, with blind spots on the climbs.
• Esteros del Iberá and the Puna routes: patchy, with long stretches of nothing.
• Iguazú: there is coverage in the park, but it is very uneven by carrier and area.

And as always: the eSIM connects to Personal, Claro or Movistar — it brings no network of its own. Where there is no mast, no eSIM works, ours or anyone else’s.

The distances in Patagonia

To size up the trip — and the data plan — the numbers help:

Route	Approximate
Buenos Aires - Bariloche	About 1,570 km; nearly 20 hours by bus or 2 by air
Bariloche - El Calafate	About 1,520 km; you fly, you do not drive it in a day
El Calafate - El Chaltén	214 km, just under 3 hours, all paved
El Calafate - Ushuaia	About 880 km via Chile, with the Magellan Strait ferry

That ferry, at Primera Angostura, does not sail in bad weather. It is the perfect example of why data matters here: plans change and you sort them out looking at your phone in the middle of nowhere, if there is signal — and by preparing beforehand if there is not.

How much data you need

Type of trip	Typical use	Plan that fits
Buenos Aires and cities: maps, transport, messaging	400-600 MB a day	5 GB for a week
The above plus social posting daily	800 MB - 1.2 GB a day	10 GB for two weeks, or unlimited
Driving Patagonia with navigation and music	Over 1.5 GB a day	Unlimited by days

The breakdown app by app is in how much data do I need for a trip.

Installing the eSIM and landing connected

1. Compatibility: dial *#06# and look for the EID; the phone must be carrier-unlocked. List by brand on compatibility.
2. Buy for the days of the trip: validity starts with the first connection in Argentina.
3. Install at home on wifi. Name it “Argentina”.
4. Lines: your home line for calls and texts with its data off; the eSIM as mobile data with roaming on.
5. On landing at Ezeiza: turn off airplane mode and wait to see “Personal”, “Claro” or “Movistar”. If you were counting on a local chip, note that Ezeiza has a shop for only one of the three, and that none of the Argentine carriers sells eSIMs to tourists.

Every menu, step by step, in how to install an eSIM.

Apps people use in Argentina

• Uber, Cabify and DiDi in Buenos Aires and other large cities; in the city of Córdoba they are not authorised and it is taxi or remís.
• Google Maps with each area downloaded, especially before heading down to Patagonia.
• SUBE for buses, the subte and metropolitan trains: the physical card is bought at kiosks and topped up with cash, and the NFC payment app only works on Android.
• Plataforma 10 for long-distance buses, with a foreign card and a digital ticket.
• WhatsApp: hostels, excursions and remís drivers organise everything there. Your own number works fine.
• Payments: card for almost everything, plus some cash in pesos for small towns, markets and rural Patagonia. MercadoPago, the country’s payment app, requires Argentine ID, so do not count on it.

Connectivity tips

• Before each stretch of Ruta 40: map downloaded, power bank, full tank and route shared.
• Pay for accommodation with your home card so the VAT refund applies.
• At ATMs, be charged in pesos and decline conversion to your own currency; and expect high per-transaction fees.
• Bank verification texts arrive on your home line, which stays active and costs nothing to receive on.
• If you cross into Chile — and in Patagonia you cross often — an Argentina-only plan stops at the border: look at regional plans.

Rough price

The block at the top shows what an Argentina eSIM costs in the MovaSim catalogue today, with the unlimited-by-days option and the cheapest by gigabytes; the Argentina page has every plan and what each covers. If you are coming down from the north, the Brazil guide covers the other side of the border.