Plan on about 9 h 50 min of driving for the 438-mile (705 km) trip from Concepción, Chile to San Rafael, Argentina, before any stops. You cross from Chile into Argentina at about mile 232, at Paso Pehuenche.
Full advisory: Chile, Argentina. Advisory issued: Chile August 19, 2026; Argentina July 10, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Chile: “Use caution when walking or driving at night, especially if alone.”
- Argentina: “Gas stations are often far apart and not always easily identified from the main roadway.”
| Total distance | 438 mi (705 km) |
|---|---|
| Time at the wheel, no stops | 9 h 50 min |
| Main roads, in order | L-25 → L-275 → L-311 → K-85-L → RN145 → RN40 → RN144 → RN143 |
| Border crossing | about mile 232, Chile → Argentina (Paso Pehuenche) |
| Regions on the route | Bío-Bío, Ñuble, Maule, Mendoza |
| Fuel estimate (car at 25 mpg) | about 17.5 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
Border crossing: what to bring for Argentina
The route crosses at about mile 232, at Paso Pehuenche, from Maule into Mendoza. Plan on two checks on each side: immigration for your passport and customs for the car.
| 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. |
| Entering Chile (U.S. citizens) | No visa needed for 90 days or less on a tourist passport; you get a Tourist Card valid for up to 90 days. Passport: must be valid for your whole stay. |
| Driving in Chile | A valid U.S. license works for the length of your tourist permit, usually 90 days. |
| The car, entering Argentina | Argentine customs (ARCA) registers the car's temporary entry. Bring the title or registration, liability insurance valid in Argentina and, if you don't own the car, a power of attorney signed before a notary. A rental car needs the rental company's MERCOSUR circulation authorization (ACM), and the company must be registered with Argentine customs. |
| 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, Argentina (updated July 16, 2026); U.S. State Department, Chile (updated July 02, 2026); ARCA (Argentine customs). Checked October 10, 2026; rules change, so confirm before you go.
What the drive from Concepción to San Rafael is like
RN40 (78 mi) and RN144 (70 mi) carry about 34% of the 438 miles. The first 232 miles are in Chile; the last 206 are in Argentina. It runs through 4 regions: Bío-Bío, Ñuble, Maule, Mendoza. Of the 9 stops listed below, 2 are within a mile of the road.
Concepción to San Rafael: the road sequence
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–126 | 126 | Bío-Bío, Ñuble, Maule |
| L-25 | 126–132 | 6 | Maule |
| connecting roads | 132–134 | 2 | Maule |
| L-275 | 134–140 | 6 | Maule |
| L-311 | 140–145 | 5 | Maule |
| connecting roads | 145–148 | 3 | Maule |
| K-85-L | 148–154 | 6 | Maule |
| local roads | 154–233 | 79 | Maule, Mendoza |
| RN145 | 233–279 | 46 | Mendoza |
| RN40 | 279–357 | 78 | Mendoza |
| RN144 | 357–427 | 70 | Mendoza |
| connecting roads | 427–432 | 5 | Mendoza |
| RN143 | 432–437 | 5 | Mendoza |
| local roads | 437–438 | 1 | Mendoza |
- Mile 30 of this route: Bío-Bío → Ñuble (region line)
- Mile 92 of this route: Ñuble → Maule (region line)
- Mile 232 of this route: Maule → Mendoza (international border)
Where to stop on the way to San Rafael
- Right off the route (under 1 mile): Casa natal de Violeta Parra (mile 76), Museo Histórico de Yerbas Buenas (mile 132)
- Nature and outdoors: Museo Municipal de Ciencias Naturales y Arqueología Profesor Pedro Ramírez Fuentes (mile 60), Campanario Thermal Baths (mile 213), Médanos Grandes (mile 280)
- Museums and history: Puente viejo de Confluencia (mile 40), Museo Municipal de Ciencias Naturales y Arqueología Profesor Pedro Ramírez Fuentes (mile 60), Museo San Francisco de Chillán (mile 62), Casa natal de Violeta Parra (mile 76), St. Ambrose Cathedral, Linares (mile 124), Museo de Arte y Artesanía de Linares (mile 124), Museo Histórico de Yerbas Buenas (mile 132)
Puente viejo de Confluencia
A national monument, the old Confluencia bridge is a 521-meter wooden viaduct over the Ñuble River between Chillán and Portezuelo, named after the adjacent town and now used only by pedestrians.
Museo Municipal de Ciencias Naturales y Arqueología Profesor Pedro Ramírez Fuentes
A public museum in Chillán, the Museo Pedro Ramírez Fuentes covers science education in entomology, archaeology, paleontology, mineralogy, and botany.
Museo San Francisco de Chillán
Part of the Franciscan heritage complex facing Plaza San Francisco in Chillán, this museum displays religious, historical, archaeological and natural history collections tied to the Franciscan Order.
Casa natal de Violeta Parra
Violeta Parra's birthplace in San Carlos, in Chile's Ñuble region, is now a cultural center and house museum dedicated to sharing her life and work.
St. Ambrose Cathedral, Linares
Linares Cathedral, dedicated to St. Ambrose, is the Catholic cathedral and seat of the Diocese of Linares in Chile's Maule Region.
Museo de Arte y Artesanía de Linares
Founded in 1962 with works donated by Chilean artists, this museum in Linares, in Chile's Maule Region, specializes in art and crafts.
Museo Histórico de Yerbas Buenas
Located in the commune of Yerbas Buenas, Linares Province, in the Maule Region, the Museo Histórico de Yerbas Buenas sits in a town known for its colonial-style houses.
Campanario Thermal Baths
Campanario Thermal Baths (Baños Campanario) are hot springs in Chile's Maule Region, used both for medicinal purposes and by visitors looking for a soak.
Médanos Grandes
Médanos Grandes is a dune field in west-central Argentina, a sandy landscape that covers an area of roughly 2,000 square kilometers.
When you get to San Rafael
San Rafael train station
San Rafael station is a railway station in the city of San Rafael, in Argentina's Mendoza Province.
More drives to San Rafael
- San Juan, Argentina to San Rafael
- Viña del Mar to San Rafael, Argentina
- Valparaíso to San Rafael, Argentina
- Temuco to San Rafael, Argentina
- Rancagua to San Rafael, Argentina
More drives from Concepción
- Concepción, Chile to Curicó
- Concepción, Chile to Santa Cruz, Chile
- Concepción, Chile to Pichilemu
- Concepción, Chile to El Colorado
- Concepción, Chile to Valle Nevado
- Concepción, Chile to Los Andes
Frequently asked questions
How long is the drive from Concepción, Chile to San Rafael, Argentina?
About 9 h 50 min of driving without stops, over 438 miles.
How far is San Rafael, Argentina from Concepción, Chile by car?
About 438 miles (705 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 Concepción to San Rafael drive cross the border?
At about mile 232, from Chile into Argentina, at Paso Pehuenche.
What do U.S. citizens need to drive from Concepción into Argentina?
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. A valid U.S. license usually works; an International Driving Permit is recommended. (U.S. State Department, updated July 16, 2026.)
What does the U.S. travel advisory say about the Concepción to San Rafael drive?
The U.S. State Department rates Chile Level 2: Exercise Increased Caution; Argentina Level 1: Exercise Normal Precautions. Read the full advisory before you go.
Which highways go from Concepción to San Rafael?
In order: L-25, L-275, L-311, K-85-L, RN145, RN40, RN144 and RN143. The road-by-road table above shows the route miles for each one.
What are good stops between Concepción and San Rafael?
Closest to the road: Puente viejo de Confluencia (historic monument, mile 40, 1 mi from the route); Casa natal de Violeta Parra (museum, mile 76, 0.3 mi from the route); Museo Histórico de Yerbas Buenas (museum, mile 132, 0.3 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.