Chascomús to Conchillas, Uruguay is about 350 road miles (563 km): roughly 7 h 27 min at the wheel if you don't stop. You cross from Argentina into Uruguay at about mile 244, 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: “Several of the main highways are particularly accident-ridden.”
| Total distance | 350 mi (563 km) |
|---|---|
| Drive time without stops | 7 h 27 min |
| Main roads, in order | RP2 → RN1 → AV1-N → RN9 → RP6 → RN12 → RN14 → RN136 |
| Border crossing | about mile 244, 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 14.0 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
The border on the way to Conchillas
The route crosses at about mile 244, 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.
On the road from Chascomús to Conchillas
RP2 (55 mi) and RN12 (47 mi) carry about 29% of the 350 miles. The first 244 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 9 stops listed below, 6 are within a mile of the road.
The route from Chascomús to Conchillas, road by road
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–4 | 4 | Buenos Aires |
| RP2 | 4–59 | 55 | Buenos Aires |
| connecting roads | 59–60 | 1 | Buenos Aires |
| RN1 | 60–76 | 16 | Buenos Aires, Ciudad de Buenos Aires |
| local roads | 76–80 | 4 | Ciudad de Buenos Aires |
| AV1-N | 80–85 | 5 | Ciudad de Buenos Aires |
| connecting roads | 85–88 | 3 | Ciudad de Buenos Aires |
| RN9 | 88–127 | 39 | Buenos Aires |
| RP6 | 127–132 | 5 | Buenos Aires |
| RN12 | 132–179 | 47 | Buenos Aires, Entre Ríos |
| RN14 | 179–216 | 37 | Entre Ríos |
| local roads | 216–222 | 6 | Entre Ríos |
| RN136 | 222–241 | 19 | Entre Ríos |
| connecting roads | 241–244 | 3 | Entre Ríos |
| local roads | 244–263 | 19 | Río Negro, Soriano |
| connecting roads | 263–265 | 2 | Soriano |
| local roads | 265–350 | 85 | Soriano, Colonia |
- Mile 72 of this route: Buenos Aires → Ciudad de Buenos Aires (region line)
- Mile 88 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
- Mile 150 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 244 of this route: Entre Ríos → Río Negro (international border)
- Mile 260 of this route: Río Negro → Soriano (region line)
- Mile 314 of this route: Soriano → Colonia (region line)
What to see on the way from Chascomús to Conchillas
- Right off the route (under 1 mile): Museum of Contemporary Art of Buenos Aires (mile 76), Teatro Maipo (mile 78), Basilica of Our Lady of the Pillar, Buenos Aires (mile 80), El Rosedal De Palermo (mile 82), Parque de la Memoria (mile 84), Cathedral of Mercedes (mile 262)
- Nature and outdoors: El Rosedal De Palermo (mile 82), Parque de la Memoria (mile 84), Parque Natural Municipal Ribera Norte (mile 91), Agraciada Beach (mile 311)
- Museums and history: Museum of Contemporary Art of Buenos Aires (mile 76), Basilica of Our Lady of the Pillar, Buenos Aires (mile 80), Museo Histórico Cornelio de Saavedra (mile 88), Cathedral of Mercedes (mile 262)
Museum of Contemporary Art of Buenos Aires
Often called MACBA, the Museum of Contemporary Art of Buenos Aires is an art museum in the city's San Telmo neighborhood.
Teatro Maipo
Founded in 1908 by entrepreneur Charles Seguin and first called the Scala Theater, Teatro Maipo is a historic theater in downtown Buenos Aires.
Basilica of Our Lady of the Pillar, Buenos Aires
Built as part of a Franciscan monastery and completed in 1732, the Basilica of Our Lady of the Pillar in Recoleta has served as a parish church since the Franciscans were expelled in 1821.
El Rosedal De Palermo
Part of Parque Tres de Febrero in Palermo, the Rosedal covers 3.4 hectares with about 18,000 rose bushes, busts of 26 poets and writers, a Greek-style bridge and an Andalusian patio.
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.
Parque Natural Municipal Ribera Norte
On the Río de la Plata shore in Acassuso, San Isidro, Ribera Norte is a municipal nature park protecting green space within greater Buenos Aires.
Cathedral of Mercedes
Dedicated to Our Lady of Mercy, this cathedral is the main Catholic church of Mercedes, Uruguay, and has been the seat of the Diocese of Mercedes since 1960.
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.
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 Chascomús
- Chascomús to Tigre
- Chascomús to San Antonio de Areco
- Chascomús to Arrecifes
- Chascomús to Martínez
- Chascomús to Mercedes, Argentina
- Chascomús to Artigas, Uruguay
Frequently asked questions
How long does it take to drive from Chascomús to Conchillas, Uruguay?
About 7 h 27 min of driving without stops, over 350 miles.
What is the driving distance from Chascomús to Conchillas, Uruguay?
About 350 miles (563 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 Chascomús to Conchillas drive cross the border?
At about mile 244, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Chascomús 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.)
What does the U.S. travel advisory say about the Chascomús to Conchillas drive?
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 Chascomús to Conchillas?
In order: RP2, 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 Chascomús to Conchillas?
Closest to the road: Museum of Contemporary Art of Buenos Aires (contemporary art museum, mile 76, 0.3 mi from the route); El Rosedal De Palermo (park, mile 82, 0.5 mi from the route); Parque de la Memoria (memorial park, mile 84, 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.