Plan on about 8 h 52 min of driving for the 427-mile (687 km) trip from Buenos Aires to Maldonado, Uruguay, before any stops. You cross from Argentina into Uruguay at about mile 167, 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: “If you are in an accident involving injury, stay in place until a police officer arrives.”
| Distance | 427 mi (687 km) |
|---|---|
| Drive time without stops | 8 h 52 min |
| Main roads, in order | AV1-N → RN9 → RP6 → RN12 → RN14 → RN136 → I-B |
| Border crossing | about mile 167, Argentina → Uruguay (the Gualeguaychú–Fray Bentos bridge) |
| Regions on the route | Ciudad de Buenos Aires, Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado |
| Fuel estimate (car at 25 mpg) | about 17.1 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
Crossing from Argentina into Uruguay
The route crosses at about mile 167, 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 Buenos Aires to Maldonado
RN12 (47 mi) and RN9 (40 mi) carry about 20% of the 427 miles. The first 167 miles are in Argentina; the last 260 are in Uruguay. It runs through 9 regions: Ciudad de Buenos Aires, Buenos Aires, Entre Ríos, Río Negro, Soriano, Colonia, San José, Canelones, Maldonado. Of the 9 stops listed below, 2 are within a mile of the road.
Which roads connect Buenos Aires and Maldonado
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–2 | 2 | Ciudad de Buenos Aires |
| AV1-N | 2–8 | 6 | Ciudad de Buenos Aires |
| connecting roads | 8–10 | 2 | Ciudad de Buenos Aires |
| RN9 | 10–50 | 40 | Ciudad de Buenos Aires, Buenos Aires |
| RP6 | 50–55 | 5 | Buenos Aires |
| RN12 | 55–102 | 47 | Buenos Aires, Entre Ríos |
| RN14 | 102–138 | 36 | Entre Ríos |
| local roads | 138–145 | 7 | Entre Ríos |
| RN136 | 145–164 | 19 | Entre Ríos |
| connecting roads | 164–167 | 3 | Entre Ríos |
| local roads | 167–263 | 96 | Río Negro, Soriano |
| connecting roads | 263–264 | 1 | Soriano |
| local roads | 264–300 | 36 | Colonia, San José |
| connecting roads | 300–303 | 3 | San José |
| local roads | 303–400 | 97 | San José, Canelones, Maldonado |
| I-B | 400–420 | 20 | Maldonado |
| local roads | 420–427 | 7 | Maldonado |
- Mile 11 of this route: Ciudad de Buenos Aires → Buenos Aires (region line)
- Mile 72 of this route: Buenos Aires → Entre Ríos (region line)
- Mile 167 of this route: Entre Ríos → Río Negro (international border)
- Mile 183 of this route: Río Negro → Soriano (region line)
- Mile 264 of this route: Soriano → Colonia (region line)
- Mile 281 of this route: Colonia → San José (region line)
- Mile 325 of this route: San José → Canelones (region line)
- Mile 395 of this route: Canelones → Maldonado (region line)
Places worth a stop between Buenos Aires and Maldonado
- Right off the route (under 1 mile): Parque de la Memoria (mile 7), Museo Departamental de San José (mile 301)
- Nature and outdoors: Parque de la Memoria (mile 7), Cerro Pan de Azúcar Native Wildlife Breeding Station (mile 408)
- Museums and history: Museo Casa de Rogelio Yrurtia (mile 7), Carnacini House Museum (mile 12), Quinta Los Ombúes (mile 14), Gualeguaychú Cathedral (mile 144), Museo Departamental de San José (mile 301), Iglesia de Cristo Obrero y Nuestra Señora de Lourdes (mile 372)
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 Casa de Rogelio Yrurtia
Sculptor Rogelio Yrurtia once lived in this house in the Belgrano district of Buenos Aires, which now operates as a museum dedicated to him.
Carnacini House Museum
Painter Ceferino Carnacini lived for fifty years in the house that is now the Carnacini House Museum (Museo Casa Carnacini), a municipal art museum in Villa Ballester, Argentina.
Quinta Los Ombúes
In the historic center of San Isidro, Buenos Aires Province, Quinta Los Ombúes is a museum and historic site set in an old colonial-style country house.
Gualeguaychú Cathedral
St. Joseph's Cathedral, also called Gualeguaychú Cathedral, is the mother church of the Roman Catholic Diocese of Gualeguaychú in Argentina.
Frigorífico Anglo del Uruguay
Liebig exported meat extract and corned beef from this spot on the Uruguay River at Fray Bentos starting in 1865. In 1924, the Anglo plant began shipping frozen meat from the same site.
Museo Departamental de San José
Set in central San José de Mayo, the Museo Departamental de San José is a history and fine arts museum that also runs a library, archives and cultural programs.
Iglesia de Cristo Obrero y Nuestra Señora de Lourdes
Since 2021, UNESCO has counted Eladio Dieste's Church of Christ the Worker among its World Heritage Sites. The engineer's brick church in Estación Atlántida was inaugurated in 1960 and is known for its undulating walls and roof.
Cerro Pan de Azúcar Native Wildlife Breeding Station
Near Piriápolis in Maldonado, this breeding station for native wildlife on Cerro Pan de Azúcar is surrounded by native vegetation and offers guided visits, including a native wildlife trail and a path up the hill.
In Maldonado itself
Laguna del Diario
Close to Maldonado and Punta del Este, Laguna del Diario is a lagoon where the first settlement of Maldonado was built in 1755, before the town moved to its present site in 1757.
Museum of the Sea
Opened in 1996 in La Barra, Maldonado, the Museum of the Sea is a natural history museum of about 2,300 square meters split into four large halls.
Cathedral of Maldonado
The Cathedral of Saint Ferdinand is Maldonado's main Roman Catholic church and has been a cathedral since 1966, when the Diocese of Maldonado-Punta del Este was founded.
More drives to Maldonado
- Salto to Maldonado
- Rosario, Argentina to Maldonado, Uruguay
- Santa Fe to Maldonado, Uruguay
- Paraná to Maldonado, Uruguay
- La Plata to Maldonado, Uruguay
- Concordia to Maldonado, Uruguay
More drives from Buenos Aires
- Buenos Aires to Magdalena
- Buenos Aires to Ayacucho, Argentina
- Buenos Aires to Sierra de La Ventana
- Buenos Aires to Luján
- Buenos Aires to San Antonio de Areco
- Buenos Aires to Arrecifes
Continue Your Adventure
Frequently asked questions
How long does it take to drive from Buenos Aires to Maldonado, Uruguay?
About 8 h 52 min of driving without stops, over 427 miles.
How far is Maldonado, Uruguay from Buenos Aires by car?
About 427 miles (687 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 Buenos Aires to Maldonado drive cross the border?
At about mile 167, from Argentina into Uruguay, at the Gualeguaychú–Fray Bentos bridge.
What do U.S. citizens need to drive from Buenos Aires 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 Buenos Aires to Maldonado 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 Buenos Aires to Maldonado?
In order: AV1-N, RN9, RP6, RN12, RN14, RN136 and I-B. The road-by-road table above shows the route miles for each one.
What are good stops between Buenos Aires and Maldonado?
Closest to the road: Parque de la Memoria (memorial park, mile 7, 0.5 mi from the route); Museo Casa de Rogelio Yrurtia (art museum, mile 7, 1 mi from the route); Museo Departamental de San José (history museum, mile 301, 0.7 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.