Plan on about 10 h 20 min of driving for the 477-mile (767 km) trip from Talca to San Luis, Argentina, before any stops. You cross from Chile into Argentina at about mile 99, 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: “Drivers should prepare in advance when taking long road trips and make sure to have adequate insurance coverage.”
| Distance | 477 mi (767 km) |
|---|---|
| Time at the wheel, no stops | 10 h 20 min |
| Main roads, in order | RN145 → RN40 → RN144 → RN143 → RN146 |
| Border crossing | about mile 99, Chile → Argentina (Paso Pehuenche) |
| Regions on the route | Maule, Mendoza, San Luis |
| Fuel estimate (car at 25 mpg) | about 19.1 gal; actual use varies by vehicle and traffic |
| Stops listed below | 3 |
The border on the way to San Luis
The route crosses at about mile 99, 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 Talca to San Luis drive plays out
RN146 (168 mi) and RN40 (78 mi) carry about 52% of the 477 miles. The first 99 miles are in Chile; the last 378 are in Argentina. It runs through 3 regions: Maule, Mendoza, San Luis. Of the 3 stops listed below, 1 are within a mile of the road.
Road-by-road breakdown: Talca to San Luis
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–100 | 100 | Maule, Mendoza |
| RN145 | 100–147 | 47 | Mendoza |
| RN40 | 147–225 | 78 | Mendoza |
| RN144 | 225–294 | 69 | Mendoza |
| connecting roads | 294–300 | 6 | Mendoza |
| RN143 | 300–305 | 5 | Mendoza |
| RN146 | 305–473 | 168 | Mendoza, San Luis |
| local roads | 473–477 | 4 | San Luis |
- Mile 99 of this route: Maule → Mendoza (international border)
- Mile 412 of this route: Mendoza → San Luis (region line)
Stops between Talca and San Luis
- Right off the route (under 1 mile): San Rafael train station (mile 305)
- Nature and outdoors: Campanario Thermal Baths (mile 80), Médanos Grandes (mile 147)
- Museums and history: San Rafael train station (mile 305)
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.
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 Luis
More drives from Talca
- Talca to Rancagua
- Talca to El Colorado
- Talca to Valle Nevado
- Talca to Los Andes
- Talca to Quintay
- Talca to Reñaca
Continue Your Adventure
Frequently asked questions
How long does it take to drive from Talca to San Luis, Argentina?
About 10 h 20 min of driving without stops, over 477 miles.
What is the driving distance from Talca to San Luis, Argentina?
About 477 miles (767 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 Talca to San Luis drive cross the border?
At about mile 99, from Chile into Argentina, at Paso Pehuenche.
What do U.S. citizens need to drive from Talca 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 Talca to San Luis, 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.
Which highways go from Talca to San Luis?
In order: RN145, RN40, RN144, RN143 and RN146. The road-by-road table above shows the route miles for each one.
Where can you stop on the way from Talca to San Luis?
Closest to the road: Campanario Thermal Baths (hot spring, mile 80, 1 mi from the route); Médanos Grandes (dune, mile 147, 4 mi from the route); San Rafael train station (railway museum, mile 305, 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.