Cheap data in Argentina: the prices we can stand behind

The cheapest way in

Nomad's 1GB for 7 days at $5 and Saily's 1GB for 7 days at $5.29 are the entry points. This page used to put eSIMCard below both on a one-gigabyte three-day plan; that row has been withdrawn, because we read eSIMCard's site on 18 August 2026 and the figure we held was wrong. The cheapest 1GB we hold is $5, sold by Airalo over three days and by Nomad over seven. All three are now verified — Airalo's on 13 August 2026, Nomad's on 17 August, Saily's on 18 August. This page previously put Saily's 1GB at $5.03 and called it indicative; the real price is 26 cents higher, which makes Nomad the cheaper seven-day gigabyte rather than a near-tie.

All of those beat the roughly $15 an airport tourist data package costs, which answers the headline question. It is not the whole answer, because a 1GB plan is the worst value in the country per gigabyte.

Where the gigabytes actually get cheap

Argentina's metered plans run up to 20GB, and — as almost everywhere — the biggest plan is the cheapest per gigabyte. Anyone who reads only the small tiers walks away with the wrong picture.

The floor across everything we hold is $2.35 a gigabyte, on a 20GB month, and three sellers are effectively tied on it: Saily at $46.99, Nomad and Airalo at $47 each. That is nearly a third off Airalo's own 5GB rate. This page has now been wrong about that floor twice in one direction. It first put it at $1.65 a gigabyte on a Nomad 20GB month of $33 that had never been checked, then at $2.23 on a Saily 20GB of $44.64 that had not been either. Saily's verified 20GB is $46.99. If 20GB is more than you need, Nomad's verified 10GB at $28 is the better mid-range buy — Saily's 10GB, which this page recommended at $22.99, actually costs $29.99.

Unlimited plans are worth checking against those rates, not against each other. Holafly's verified 3-day unlimited is $19.90 and Airalo's is $20 — ten cents apart, where this page used to print $11.70 for Holafly and present it as the cheap short option. It is not; it is the same money as Airalo. Both only make sense if you cannot predict your usage.

Buying a local SIM on arrival

Personal, Movistar and Claro prepaid SIMs are sold at Buenos Aires Ezeiza (EZE), Córdoba and Mendoza airports, and in carrier stores in every city. A tourist data package at the airport runs about $15. A passport is required for registration, so allow time for the form — this is not a pick-it-up-and-go purchase.

If you buy locally, ask for Personal by name at the counter. It has the widest 4G and LTE coverage across the national routes and 5G in most cities, which makes it the one to have on a Patagonia road trip. That is a point about the Argentine networks themselves, not about any eSIM: which carrier an eSIM lands on is a separate and much murkier question.

Where the signal stops

The Patagonian steppe between towns is the big one — the Bariloche to El Calafate route has long signal-free stretches, and no plan you buy changes that. Coverage in Los Glaciares National Park is limited, including around Perito Moreno, and it thins out quickly beyond Ushuaia itself.

WiFi takes up more slack here than in most countries. Buenos Aires cafés are full of people working all afternoon on one coffee, and hotel and restaurant WiFi is good in the capital and in provincial cities. A 3GB plan often goes further in Argentina than the same plan would elsewhere. Emergency calls work on any Argentine network without an active plan.

Provider-by-provider plan lists sit on the Argentina hub.