The Wayro route from San Juan, Argentina to Tafí Viejo is 517 miles (832 km), about 10 h 33 min of driving without stops.
Full advisory: Argentina. Advisory issued: Argentina July 10, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Argentina: “Gas stations are often far apart and not always easily identified from the main roadway.”
| Total distance | 517 mi (832 km) |
|---|---|
| Driving time, no stops | 10 h 33 min |
| Main roads, in order | RN40 → RN150 → RN38 → RN1V38 → RN9 |
| Provinces on the route | San Juan, La Rioja, Catamarca, Tucumán |
| Fuel estimate (car at 25 mpg) | about 20.7 gal; actual use varies by vehicle and traffic |
| Stops listed below | 6 |
How the San Juan to Tafí Viejo drive plays out
RN38 (234 mi) and RN150 (118 mi) carry about 68% of the 517 miles. It runs through 4 provinces: San Juan, La Rioja, Catamarca, Tucumán. Of the 6 stops listed below, 1 are within a mile of the road.
Road-by-road breakdown: San Juan to Tafí Viejo
| Road | Route miles (from–to) | Length, mi | Province |
|---|---|---|---|
| local roads | 0–1 | 1 | San Juan |
| RN40 | 1–112 | 111 | San Juan |
| RN150 | 112–230 | 118 | San Juan, La Rioja |
| RN38 | 230–442 | 212 | La Rioja, Catamarca, Tucumán |
| RN1V38 | 442–487 | 45 | Tucumán |
| RN38 | 487–509 | 22 | Tucumán |
| RN9 | 509–514 | 5 | Tucumán |
| local roads | 514–517 | 3 | Tucumán |
- Mile 176 of this route: San Juan → La Rioja (province line)
- Mile 324 of this route: La Rioja → Catamarca (province line)
- Mile 413 of this route: Catamarca → Tucumán (province line)
Places worth a stop between San Juan and Tafí Viejo
- Right off the route (under 1 mile): El Chiflón (mile 185)
- Nature and outdoors: El Chiflón (mile 185)
- Museums and history: Museo Arqueológico Regional Inca Huasi (mile 273), San Fernando del Valle de Catamarca Cathedral (mile 368), Archaeological Museum Adam Quiroga (mile 368), Casa de Tucumán (mile 505), Basílica de la Merced (mile 506)
El Chiflón
On National Route 150, about 70 km west of Patquía, El Chiflón Provincial Park belongs to the Talampaya–Ischigualasto geological basin and shares its landscape, geology and cultural features with those parks.
Museo Arqueológico Regional Inca Huasi
The Inca Huasi Regional Archaeological Museum, in the city of La Rioja, is devoted to the archaeology of northwestern Argentina.
San Fernando del Valle de Catamarca Cathedral
Dedicated to the Virgen del Valle, the Cathedral Basilica of Our Lady of the Valley stands in San Fernando del Valle de Catamarca.
Archaeological Museum Adam Quiroga
The Archaeological Museum Adam Quiroga (Museo Arqueológico Adán Quiroga) safeguards what is considered the most important collection of archaeological pieces in Catamarca province.
Casa de Tucumán
Built in colonial times in San Miguel de Tucumán, Casa de Tucumán is the historic house and museum where Argentina's Declaration of Independence was issued on July 9, 1816.
Basílica de la Merced
San Miguel de Tucumán's Basílica de la Merced holds the image of Our Lady of Mercy, named General of the Argentine Army by General Manuel Belgrano on September 24, 1812.
More drives to Tafí Viejo
- La Rioja to Tafí Viejo
- Córdoba, Argentina to Tafí Viejo
- Resistencia to Tafí Viejo
- Río Cuarto to Tafí Viejo
- Corrientes to Tafí Viejo
- Santa Fe to Tafí Viejo
From San Juan to other places in Argentina
- San Juan, Argentina to Tunuyán
- San Juan, Argentina to San Rafael
- San Juan, Argentina to Villa Carlos Paz
- San Juan, Argentina to Amaicha del Valle
- San Juan, Argentina to Viña del Mar, Chile
- San Juan, Argentina to Valparaíso, Chile
Frequently asked questions
How long is the drive from San Juan, Argentina to Tafí Viejo?
About 10 h 33 min of driving without stops, over 517 miles.
How far is Tafí Viejo from San Juan, Argentina by car?
About 517 miles (832 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.
What does the U.S. travel advisory say about the San Juan to Tafí Viejo drive?
The U.S. State Department rates Argentina Level 1: Exercise Normal Precautions. Read the full advisory before you go.
What roads does the drive from San Juan to Tafí Viejo use?
In order: RN40, RN150, RN38, RN1V38 and RN9. The road-by-road table above shows the route miles for each one.
What are good stops between San Juan and Tafí Viejo?
Closest to the road: El Chiflón (park, mile 185, 0.1 mi from the route); San Fernando del Valle de Catamarca Cathedral (basilica, mile 368, 2 mi from the route); Basílica de la Merced (basilica, mile 506, 2 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.