Gualeguaychú to Fray Bentos Border Crossing: 2026 Visa Run Guide

The General San Martín International Bridge links Gualeguaychú, in Argentina’s Entre Ríos province, with Fray Bentos in Uruguay. It is the main road crossing from Buenos Aires into Uruguay and the cheapest land alternative to the Colonia ferry for a visa run.

Quick Facts

• Argentina side: Gualeguaychú, Entre Ríos, about 230 km from Buenos Aires
• Uruguay side: Fray Bentos, Río Negro department
• Controls: integrated, so you exit one country and enter the other in one stop
• Bus fares: buses from Buenos Aires into Uruguay via Fray Bentos or Paysandú cost roughly US$13 to US$30

Getting There

Long-distance buses run from Buenos Aires Retiro to Gualeguaychú and on across the bridge to Fray Bentos, Mercedes and Montevideo. Through buses stop at the control post and passengers get off with their passports. Traveling by car is also common, with long lines in January and on holiday weekends.

Crossing Step By Step

1. Present your passport to Argentine and Uruguayan officers at the integrated control
2. Get your Argentine exit and Uruguayan entry recorded
3. Continue into Fray Bentos, a few kilometers from the bridge
4. To return, reverse the process and ask Argentine officers for a new entry

Check current hours on Argentina’s official border-crossing pages before you go, especially for night crossings.

What To Do In Fray Bentos

Fray Bentos is a quiet river town with a UNESCO-listed former meatpacking plant, the source of the famous corned beef. It is worth a night rather than an immediate U-turn, which also looks better at the border.

Uruguay Entry

Most Western passports get 90 days visa-free in Uruguay. Officers can ask how long you plan to stay and how you will leave. Argentine and Uruguayan controls are integrated at the bridges, so you usually see both sets of officers in one stop.

Argentina’s Tourist Stay And Visa Runs

Most Western visitors get up to 90 days in Argentina on arrival. You can apply once for a 90-day extension at a Dirección Nacional de Migraciones office, but most long-stay visitors cross into Uruguay or Chile and come back instead. That still works, but it is not a right. Under Decree 366/2025, border officers can refuse entry if they have good reason to believe a “tourist” is really living or working in Argentina, and they can give fewer than 90 days. Since mid-2025, visitors without permanent residency may also be asked for health insurance covering their stay.

Bring Proof Of Onward Travel

Border officers on a visa run are deciding one thing: will you leave again on time? A confirmed onward or return booking is the quickest way to answer that. It matters most when you are re-entering a country you only just left, and on the flight leg if your run involves one.

If you do not want to commit to a real ticket yet, Fast Onward Tickets issues an onward flight reservation in minutes. See our complete guide to proof of onward travel for what officers and airlines accept.

FAQs

Is Fray Bentos cheaper than the Colonia ferry?

Usually, yes, though the trip is longer.

Can I return to Argentina the same day?

Yes, but frequent same-day runs are exactly what officers look for.

Are there other bridges into Uruguay?

Yes: Colón to Paysandú, and Concordia to Salto.

The Bottom Line

Gualeguaychú to Fray Bentos is an easy, low-cost Uruguay run. Spend a night, keep your travel history tidy, and bring proof that you will leave Argentina again.