Plan on about 6 h 40 min of driving for the 307-mile (494 km) trip from La Plata to Conchillas, Uruguay, before any stops. You cross from Argentina into Uruguay at about mile 201, at the Gualeguaychú–Fray Bentos bridge.
Full advisory: Argentina, Uruguay. Advisory issued: Argentina July 10, 2026; Uruguay July 28, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Argentina: “Drivers in Argentina tend to be aggressive, especially in Buenos Aires, and often ignore traffic regulations.”
- Uruguay: “Illumination, pavement markings, and road surfaces for secondary roads can be poor.”
| Distance by road | 307 mi (494 km) |
|---|---|
| Driving time, no stops | 6 h 40 min |
| Main roads, in order | RN1 → AV1-N → RN9 → RP6 → RN12 → RN14 → RN136 |
| Border crossing | about mile 201, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia |
| Fuel estimate (car at 25 mpg) | about 12.3 gal; actual use varies by vehicle and traffic |
| Stops listed below | 8 |
The border on the way to Conchillas
The route crosses at about mile 201, at the Gualeguaychú–Fray Bentos bridge, from Entre Ríos into Río Negro. Plan on two checks on each side: immigration for your passport and customs for the car.
| Entering Uruguay (U.S. citizens) | No visa needed for visits of 90 days or less. Passport: must be valid for 6 months beyond your arrival date. |
|---|---|
| Driving in Uruguay | You can drive on your U.S. license. |
| Entering Argentina (U.S. citizens) | No visa needed for visits of 90 days or less. Passport: must be valid when you enter; leave a blank page for the entry and exit stamps. |
| Driving in Argentina | A valid U.S. license usually works; an International Driving Permit is recommended. |
| Rental car | Cross only if the rental company authorizes it in writing and gives you the papers for the border; ask before you book. |
Sources: U.S. State Department, Uruguay (updated August 13, 2026); U.S. State Department, Argentina (updated July 16, 2026). Checked October 10, 2026; rules change, so confirm before you go.
The La Plata–Conchillas drive in a few lines
RN12 (47 mi) and RN9 (39 mi) carry about 28% of the 307 miles. The first 201 miles are in Argentina; the last 106 are in Uruguay. It runs through 6 regions: Buenos Aires, Ciudad de Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia. Of the 8 stops listed below, 5 are within a mile of the road.
La Plata to Conchillas: the road sequence
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–3 | 3 | Buenos Aires |
| RN1 | 3–33 | 30 | Buenos Aires, Ciudad de Buenos Aires |
| local roads | 33–37 | 4 | Ciudad de Buenos Aires |
| AV1-N | 37–42 | 5 | Ciudad de Buenos Aires |
| connecting roads | 42–45 | 3 | Ciudad de Buenos Aires |
| RN9 | 45–84 | 39 | Buenos Aires |
| connecting roads | 84–85 | 1 | Buenos Aires |
| RP6 | 85–89 | 4 | Buenos Aires |
| RN12 | 89–136 | 47 | Buenos Aires, Entre Ríos |
| RN14 | 136–173 | 37 | Entre Ríos |
| local roads | 173–179 | 6 | Entre Ríos |
| RN136 | 179–198 | 19 | Entre Ríos |
| connecting roads | 198–201 | 3 | Entre Ríos |
| local roads | 201–220 | 19 | Río Negro, Soriano |
| connecting roads | 220–222 | 2 | Soriano |
| local roads | 222–307 | 85 | Soriano, Colonia |
- Mile 29 of this route: Buenos Aires → Ciudad de Buenos Aires (region line)
- Mile 45 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
- Mile 107 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 201 of this route: Entre Ríos → Río Negro (international border)
- Mile 217 of this route: Río Negro → Soriano (region line)
- Mile 272 of this route: Soriano → Colonia (region line)
Places worth a stop between La Plata and Conchillas
- Right off the route (under 1 mile): Museo del Cine Pablo Ducrós Hicken (mile 33), Basílica de Nuestra Señora del Socorro (mile 36), Museo de Arquitectura y Diseño (mile 37), Parque de la Memoria (mile 41), Museo Municipal Profesor Roselli (mile 271)
- Nature and outdoors: Parque de la Memoria (mile 41), Agraciada Beach (mile 268)
- Museums and history: Museo del Cine Pablo Ducrós Hicken (mile 33), Basílica de Nuestra Señora del Socorro (mile 36), Museo de Arquitectura y Diseño (mile 37), Museo Histórico Cornelio de Saavedra (mile 45), Museo Municipal Profesor Roselli (mile 271)
Museo del Cine Pablo Ducrós Hicken
Established in 1971, Museo del Cine Pablo Ducrós Hicken in Buenos Aires traces Argentine cinema through about 90,000 film reels plus photos, posters, scripts, costumes and film equipment.
Basílica de Nuestra Señora del Socorro
In the Retiro neighborhood of Buenos Aires, the Basílica de Nuestra Señora del Socorro is a Catholic church.
Museo de Arquitectura y Diseño
Run by the Sociedad Central de Arquitectos, Museo de Arquitectura y Diseño is a museum dedicated to architecture and design in Argentina.
Parque de la Memoria
Facing the Río de la Plata at the northern end of Buenos Aires' Belgrano section, Parque de la Memoria is a public memorial to the victims of Argentina's 1976–1983 military regime.
Museo Histórico Cornelio de Saavedra
Inside Parque General Paz on Avenida Crisólogo Larralde, the Cornelio de Saavedra Historical Museum is a history museum of the City of Buenos Aires.
Frigorífico Anglo del Uruguay
The former Anglo meatpacking plant on the Uruguay River at Fray Bentos began shipping frozen meat in 1924, on the site where Liebig exported meat extract and corned beef from 1865. It is part of a UNESCO World Heritage landscape inscribed in 2015.
Agraciada Beach
On the eastern bank of the Uruguay River in Soriano department, Agraciada Beach is a historic beach area facing Argentina's Entre Ríos province.
Museo Municipal Profesor Roselli
Nueva Palmira's municipal museum, also known as the Museo Roselli, is named for its first director, Professor Francisco Lucas Rosselli.
More drives to Conchillas
- Tacuarembó to Conchillas
- Artigas to Conchillas
- Veinticinco de Agosto to Conchillas
- Fray Marcos to Conchillas
- Minas to Conchillas
- Alejandro Gallinal to Conchillas
More drives from La Plata
- La Plata to Tigre
- La Plata to Luján
- La Plata to San Antonio de Areco
- La Plata to Arrecifes
- La Plata to Pergamino
- La Plata to Martínez
Continue Your Adventure
Frequently asked questions
How long is the drive from La Plata to Conchillas, Uruguay?
About 6 h 40 min of driving without stops, over 307 miles.
What is the driving distance from La Plata to Conchillas, Uruguay?
About 307 miles (494 km) on the Wayro route. Other map services may show a few miles more or less, depending on where they start and end in each city.
Where does the La Plata to Conchillas drive cross the border?
At about mile 201, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from La Plata into Uruguay?
No visa needed for visits of 90 days or less. Passport: must be valid for 6 months beyond your arrival date. You can drive on your U.S. license. (U.S. State Department, updated August 13, 2026.)
Is it safe to drive from La Plata to Conchillas, Uruguay?
The U.S. State Department rates Argentina Level 1: Exercise Normal Precautions; Uruguay Level 2: Exercise Increased Caution. Read the full advisory before you go.
Which highways go from La Plata to Conchillas?
In order: RN1, AV1-N, RN9, RP6, RN12, RN14 and RN136. The road-by-road table above shows the route miles for each one.
Where can you stop on the way from La Plata to Conchillas?
Closest to the road: Museo del Cine Pablo Ducrós Hicken (film museum, mile 33, 0.1 mi from the route); Basílica de Nuestra Señora del Socorro (basilica, mile 36, 0.2 mi from the route); Museo de Arquitectura y Diseño (museum, mile 37, 0.4 mi from the route). All stops are described above.
How we put this guide together
Wayro calculates the route from OpenStreetMap road data; mile numbers are positions along this route, not highway markers, and "from the route" distances are straight-line, so the real detour depends on access roads. Stops are chosen from parks, natural sites, museums, historic sites and attractions close to the route: at least one strong stop for each stretch of the drive, then the best-known places nearest the road, up to nine in all. Places that are closed, private or not open to visitors are removed. Place descriptions are written by the Wayro team from official park, museum, tourism and government websites and other published sources. Safety levels and entry rules were checked against the U.S. Department of State on October 10, 2026. Conditions change, so check the linked sources before you travel.
Route data © OpenStreetMap contributors.