Plan on about 6 h 42 min of driving for the 274-mile (441 km) trip from Curicó to Las Leñas, Argentina, before any stops. You cross from Chile into Argentina at about mile 139, 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 | 274 mi (441 km) |
|---|---|
| Driving time, no stops | 6 h 42 min |
| Main roads, in order | RN145 → RN40 → RP222 |
| Border crossing | about mile 139, Chile → Argentina (Paso Pehuenche) |
| Regions on the route | Maule, Mendoza |
| Fuel estimate (car at 25 mpg) | about 11.0 gal; actual use varies by vehicle and traffic |
| Stops listed below | 3 |
The border on the way to Las Leñas
The route crosses at about mile 139, 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.
How the Curicó to Las Leñas drive plays out
RN40 (58 mi) and RN145 (47 mi) carry about 38% of the 274 miles. The first 139 miles are in Chile; the last 135 are in Argentina. It runs through 2 regions: Maule, Mendoza. None of the 3 stops below is right on the road, so plan each as a short side trip.
Roads you'll take from Curicó to Las Leñas
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–139 | 139 | Maule |
| RN145 | 139–186 | 47 | Mendoza |
| RN40 | 186–244 | 58 | Mendoza |
| RP222 | 244–274 | 30 | Mendoza |
- Mile 139 of this route: Maule → Mendoza (international border)
What to see on the way from Curicó to Las Leñas
- Nature and outdoors: Campanario Thermal Baths (mile 119), Médanos Grandes (mile 186)
- Museums and history: St. Augustine Cathedral, Talca (mile 40)
St. Augustine Cathedral, Talca
Also known as Talca Cathedral, St. Augustine Cathedral is a Catholic cathedral in Talca, Chile, dedicated to Saint Augustine.
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.
More drives to Las Leñas
- Temuco to Las Leñas, Argentina
- Rancagua to Las Leñas, Argentina
- Villarrica to Las Leñas, Argentina
- Pucón to Las Leñas, Argentina
- Curacautín to Las Leñas, Argentina
- Pichilemu to Las Leñas, Argentina
More drives from Curicó
- Curicó to El Colorado
- Curicó to Valle Nevado
- Curicó to Los Andes
- Curicó to Algarrobo
- Curicó to Quintay
- Curicó to Reñaca
Frequently asked questions
How long does it take to drive from Curicó to Las Leñas, Argentina?
About 6 h 42 min of driving without stops, over 274 miles.
How far is Las Leñas, Argentina from Curicó by car?
About 274 miles (441 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 Curicó to Las Leñas drive cross the border?
At about mile 139, from Chile into Argentina, at Paso Pehuenche.
What do U.S. citizens need to drive from Curicó 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.)
Is it safe to drive from Curicó to Las Leñas, Argentina?
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.
What roads does the drive from Curicó to Las Leñas use?
In order: RN145, RN40 and RP222. The road-by-road table above shows the route miles for each one.
What are good stops between Curicó and Las Leñas?
Closest to the road: St. Augustine Cathedral, Talca (cathedral, mile 40, 2 mi from the route); Campanario Thermal Baths (hot spring, mile 119, 1 mi from the route); Médanos Grandes (dune, mile 186, 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.