By road, Tunuyán and Monte Águila, Chile are about 451 miles (726 km) apart, or roughly 9 h 49 min of driving. You cross from Argentina into Chile at about mile 239, at Paso Pehuenche.
Full advisory: Argentina, Chile. Advisory issued: Argentina July 10, 2026; Chile August 19, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Argentina: “Drivers should prepare in advance when taking long road trips and make sure to have adequate insurance coverage.”
- Chile: “Use caution when walking or driving at night, especially if alone.”
| Distance by road | 451 mi (726 km) |
|---|---|
| Time at the wheel, no stops | 9 h 49 min |
| Main roads, in order | RN40 → RN145 → K-85-L → L-311 → Q-606 |
| Border crossing | about mile 239, Argentina → Chile (Paso Pehuenche) |
| Regions on the route | Mendoza, Maule, Ñuble, Bío-Bío |
| Fuel estimate (car at 25 mpg) | about 18.0 gal; actual use varies by vehicle and traffic |
| Stops listed below | 7 |
Getting across the Argentina–Chile border
The route crosses at about mile 239, at Paso Pehuenche, from Mendoza into Maule. Plan on two checks on each side: immigration for your passport and customs for the car.
| 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. |
| 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. |
| The car, entering Chile | Foreign-plated cars entering Chile need SOAPEX, Chile's mandatory accident insurance for foreign vehicles, unless an international agreement covers the car. Keep the certificate with the car's papers. |
| 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, Chile (updated July 02, 2026); U.S. State Department, Argentina (updated July 16, 2026); CMF Chile (financial regulator). Checked October 10, 2026; rules change, so confirm before you go.
The Tunuyán–Monte Águila drive in a few lines
RN40 (191 mi) and RN145 (46 mi) carry about 53% of the 451 miles. The first 239 miles are in Argentina; the last 212 are in Chile. It runs through 4 regions: Mendoza, Maule, Ñuble, Bío-Bío. Of the 7 stops listed below, 1 are within a mile of the road.
Road-by-road breakdown: Tunuyán to Monte Águila
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| RN40 | 0–191 | 191 | Mendoza |
| RN145 | 191–237 | 46 | Mendoza |
| local roads | 237–316 | 79 | Mendoza, Maule |
| K-85-L | 316–321 | 5 | Maule |
| connecting roads | 321–324 | 3 | Maule |
| L-311 | 324–341 | 17 | Maule |
| local roads | 341–447 | 106 | Maule, Ñuble, Bío-Bío |
| connecting roads | 447–448 | 1 | Bío-Bío |
| Q-606 | 448–451 | 3 | Bío-Bío |
- Mile 239 of this route: Mendoza → Maule (international border)
- Mile 377 of this route: Maule → Ñuble (region line)
- Mile 438 of this route: Ñuble → Bío-Bío (region line)
Breaking up the drive: stops between Tunuyán and Monte Águila
- Right off the route (under 1 mile): Casa natal de Violeta Parra (mile 393)
- Nature and outdoors: Médanos Grandes (mile 190), Campanario Thermal Baths (mile 257)
- Museums and history: St. Ambrose Cathedral, Linares (mile 344), Museo de Arte y Artesanía de Linares (mile 344), Casa natal de Violeta Parra (mile 393), Museo Marta Colvin (mile 407), Murales de Siqueiros y Guerrero (mile 408)
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.
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.
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.
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.
Museo Marta Colvin
On the Fernando May campus of the Universidad del Bío-Bío in Chillán, Museo Marta Colvin presents the life and work of local sculptor Marta Colvin. It opened on July 15, 2011.
Murales de Siqueiros y Guerrero
Mexican artists David Alfaro Siqueiros and Xavier Guerrero painted this set of murals in Chillán's Escuela México, which faces Plaza Héroes de Iquique.
More drives to Monte Águila
- Talca to Monte Águila
- Pelluhue to Monte Águila
- Curicó to Monte Águila
- Pichilemu to Monte Águila
- Rancagua to Monte Águila
- Santiago, Chile to Monte Águila
More drives from Tunuyán
- Tunuyán to Capilla del Monte
- Tunuyán to San José de Jáchal
- Tunuyán to El Colorado, Chile
- Tunuyán to Santa Cruz, Chile
- Tunuyán to Vicuña, Chile
- Tunuyán to Valle Nevado, Chile
Frequently asked questions
How long does it take to drive from Tunuyán to Monte Águila, Chile?
About 9 h 49 min of driving without stops, over 451 miles.
What is the driving distance from Tunuyán to Monte Águila, Chile?
About 451 miles (726 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 Tunuyán to Monte Águila drive cross the border?
At about mile 239, from Argentina into Chile, at Paso Pehuenche.
What do U.S. citizens need to drive from Tunuyán into Chile?
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. A valid U.S. license works for the length of your tourist permit, usually 90 days. (U.S. State Department, updated July 02, 2026.)
Is it safe to drive from Tunuyán to Monte Águila, Chile?
The U.S. State Department rates Argentina Level 1: Exercise Normal Precautions; Chile Level 2: Exercise Increased Caution. Read the full advisory before you go.
Which highways go from Tunuyán to Monte Águila?
In order: RN40, RN145, K-85-L, L-311 and Q-606. The road-by-road table above shows the route miles for each one.
What are good stops between Tunuyán and Monte Águila?
Closest to the road: Campanario Thermal Baths (hot spring, mile 257, 1 mi from the route); Casa natal de Violeta Parra (museum, mile 393, 0.3 mi from the route); Murales de Siqueiros y Guerrero (historic monument, mile 408, 1 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.