By road, Comodoro Rivadavia and San Antonio Oeste are about 434 miles (699 km) apart, or roughly 8 h 9 min of driving.
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.”
| Distance | 434 mi (699 km) |
|---|---|
| Drive time without stops | 8 h 9 min |
| Main roads, in order | RN3 → RNA026 |
| Provinces on the route | Chubut, Río Negro |
| Fuel estimate (car at 25 mpg) | about 17.4 gal; actual use varies by vehicle and traffic |
| Stops listed below | 2 |
Driving Comodoro Rivadavia to San Antonio Oeste: the shape of the trip
RN3 (419 mi) and RNA026 (4 mi) carry about 97% of the 434 miles. It runs through 2 provinces: Chubut, Río Negro. None of the 2 stops below is right on the road, so plan each as a short side trip.
Comodoro Rivadavia to San Antonio Oeste: the road sequence
| Road | Route miles (from–to) | Length, mi | Province |
|---|---|---|---|
| local roads | 0–3 | 3 | Chubut |
| RN3 | 3–422 | 419 | Chubut, Río Negro |
| local roads | 422–430 | 8 | Río Negro |
| RNA026 | 430–434 | 4 | Río Negro |
- Mile 325 of this route: Chubut → Río Negro (province line)
Stops between Comodoro Rivadavia and San Antonio Oeste
- Nature and outdoors: Área natural protegida Bahía de San Antonio (mile 426)
- Museums and history: Museum of Paleontology Egidio Feruglio (mile 234)
Museum of Paleontology Egidio Feruglio
Fossils of Patagonia's ancient animals and plants fill the Museum of Paleontology Egidio Feruglio in Trelew, a research and exhibition center tracing how the region changed over geological time.
Área natural protegida Bahía de San Antonio
On the San Matías Gulf in Argentina's Río Negro province, the Bahía de San Antonio protected area was set up in 1993 to safeguard a seabird breeding zone and a stopover for migratory birds.
More drives to San Antonio Oeste
From Comodoro Rivadavia to other places in Argentina
- Comodoro Rivadavia to Río Gallegos
- Comodoro Rivadavia to Viedma
- Comodoro Rivadavia to Balneario El Cóndor
- Comodoro Rivadavia to San Carlos de Bariloche
- Comodoro Rivadavia to El Bolsón
Frequently asked questions
How long does it take to drive from Comodoro Rivadavia to San Antonio Oeste?
About 8 h 9 min of driving without stops, over 434 miles.
What is the driving distance from Comodoro Rivadavia to San Antonio Oeste?
About 434 miles (699 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 Comodoro Rivadavia to San Antonio Oeste 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 Comodoro Rivadavia to San Antonio Oeste use?
In order: RN3 and RNA026. The road-by-road table above shows the route miles for each one.
What are good stops between Comodoro Rivadavia and San Antonio Oeste?
Closest to the road: Museum of Paleontology Egidio Feruglio (paleontological museum, mile 234, 1 mi from the route); Área natural protegida Bahía de San Antonio (park, mile 426, 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.