The first time I flew into Carrasco for a Punta del Este beach week, I'd assumed I would buy an Antel SIM at the airport. The Antel counter required my passport, a Uruguayan registration step, and a verification call. The wait took twenty-five minutes during the post-LATAM arrival peak. The next trip I bought a Uruguay eSIM at the Buenos Aires layover and walked off the plane at Carrasco with Antel 4G already reconnecting to the rental-car company's WhatsApp.
Why buying an eSIM beats the airport kiosk
Antel, Movistar, and Claro all operate prepaid counters at Carrasco International. A SIM is a real option for a longer stay, especially for second-home owners in Punta del Este or business travellers on multi-week assignments. But the counters require your passport, a Uruguayan registration step, and can be slow during peak high-season summer arrival banks. An eSIM installs from a QR code before you fly, activates on first Uruguayan tower contact, and skips the arrivals queue.
Most travellers into Uruguay fit one of three shapes: short Montevideo cultural visitors (3-5 days, Centro and historic-city focus); Punta del Este beach visitors (5-10 days, single-resort focus, often during the January-February high season); and combined Argentina-Uruguay circuit travellers using the Buquebus ferry between Buenos Aires and Colonia (5-10 days). All three want data from the gate onward.
What Antel, Movistar, and Claro coverage actually looks like
Montevideo has solid 4G across central districts (Centro, Ciudad Vieja, Pocitos, Punta Carretas, Carrasco), the Rambla coastal road, and the Carrasco airport corridor. Punta del Este has continuous 4G across the peninsula, La Mano beach (Brava and Mansa sides), Punta Ballena, La Barra, and the José Ignacio area. Colonia del Sacramento has continuous 4G across the UNESCO Old Town and the Buquebus ferry terminal.
The major coastal road (Ruta Interbalnearia connecting Montevideo to Punta del Este) has continuous 4G at all major resort towns. Atlantic-coast extensions to Cabo Polonio (the off-grid beach destination) have 4G at the access point; the village itself has limited coverage by design. La Pedrera, Punta del Diablo, and the Atlantic-coast beach towns have continuous 4G.
The interior estancia regions have 4G at the major settlements (Salto, Paysandú, Tacuarembó, Mercedes). Inter-city highways (Ruta 1 Montevideo-Colonia, Ruta 5 Montevideo-Salto, Ruta 9 Atlantic coast) stay covered at all major towns. Remote ranch roads thin briefly.
Most travel eSIMs route through Antel, the state-owned carrier, which has the widest national footprint.
How the major eSIM providers compare in Uruguay
Pricing models vary across providers. Custom plans are 99esim's distinguishing feature. Airalo sells fixed bundles. Holafly sells unlimited day-pass windows at premium Uruguay pricing. Nomad covers Uruguay on a fixed-bundle model. Ubigi prices Uruguay on competitive short-validity per-GB tiers.
Uruguay pricing varies meaningfully across providers. Ubigi's $4.00 / 1 GB / 7 day is the cheapest entry. 99esim's €3.49 (~$4.12) is essentially tied and includes the group-eSIM benefit. Airalo's $7.00 / 1 GB / 3 day and Nomad's $7.00 / 1 GB / 7 day are the next tier. Holafly's $20.90 / 3 day unlimited is the most expensive entry. The matrix below spells out the per-axis shape for Uruguay specifically.
Install timing: when to set it up
Install the eSIM the night before you fly, or during a Buenos Aires, São Paulo, Santiago, Lima, or Madrid layover. The QR code generates immediately after payment; scan it with your phone's eSIM settings; the profile installs but doesn't activate until it first sees a Uruguayan tower. At the gate, switch your home SIM's data off and land at Carrasco with data already working.
iOS 17.4+ devices can install directly from a provider's app without scanning a QR code, on providers that support it. Android users still scan a QR code, which takes thirty seconds.
Who should pick what
A 3-5 day Montevideo cultural visit works on a 1 GB / 7 day plan. Ubigi at $4.00 or 99esim at €3.49 are the cheapest entries.
A 5-7 day Montevideo + Colonia + Punta del Este circuit benefits from a 3 GB plan because tour coordination across multiple cities adds up.
A 5-10 day Punta del Este high-season visit fits a 3-5 GB plan because resort coordination, restaurant booking app use, and family WhatsApp during peak January-February runs heavy.
A combined Buenos Aires + Montevideo + Punta del Este trip wants either a South America regional plan or two country plans. The Buquebus ferry route from BA to Colonia is the standard add-on.
A heavy streamer or content creator posting daily Punta del Este or Montevideo video without meter anxiety fits Holafly's unlimited-day model only if the premium Uruguay day rate is worth it.
A short business or transit visit fits Ubigi's $4.00 starter or 99esim's €3.49.
A group of three or more travelling together, particularly a family Punta del Este visit or business delegation, benefits from 99esim's group eSIM, which covers up to four devices on one purchase. None of the tracked competitors offer that product today.
A note on Uruguay's high-season pricing context
Uruguay's beach economy concentrates dramatically in January-February when Argentine visitors fill Punta del Este, José Ignacio, and the Atlantic coast resorts. During this window, restaurant reservations, beach-club bookings, and family-coordination WhatsApp traffic spike. The travel-eSIM cost is trivial relative to high-season Punta accommodations and dining; sizing the plan correctly (3-5 GB minimum for a high-season Punta week) matters more than the per-GB rate. For shoulder-season or off-season visits (March-November), a 1 GB plan handles the lighter coordination load comfortably. For year-round Montevideo cultural visits, the standard tier works well.