Asunción to Posadas, Argentina is about 234 road miles (377 km): roughly 6 h 1 min at the wheel if you don't stop. You cross from Paraguay into Argentina at about mile 231, at Posadas–Encarnación.
Full advisory: Paraguay, Argentina. Advisory issued: Paraguay August 19, 2026; Argentina July 10, 2026; checked October 10, 2026.
On the roads, the State Department says:
- Paraguay: “Intercity highway maintenance is not equal to U.S. standards.”
- Argentina: “Gas stations are often far apart and not always easily identified from the main roadway.”
| Total distance | 234 mi (377 km) |
|---|---|
| Driving time, no stops | 6 h 1 min |
| Main roads, in order | PY01 → PY18 → PY06 |
| Border crossing | about mile 231, Paraguay → Argentina (Posadas–Encarnación) |
| Regions on the route | Asunción, Central, Paraguarí, Misiones, Itapúa |
| Fuel estimate (car at 25 mpg) | about 9.4 gal; actual use varies by vehicle and traffic |
| Stops listed below | 3 |
Border crossing: what to bring for Argentina
The route crosses at about mile 231, at Posadas–Encarnación, from Itapúa into Misiones. 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 Paraguay (U.S. citizens) | No visa needed for stays of up to 90 days. Passport: must be valid for 6 months beyond your arrival date. |
| Driving in Paraguay | You need a valid U.S. license and a valid International Driving Permit. |
| 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, Paraguay (updated September 17, 2026); ARCA (Argentine customs). Checked October 10, 2026; rules change, so confirm before you go.
On the road from Asunción to Posadas
PY01 (192 mi) and PY18 (16 mi) carry about 89% of the 234 miles. The first 231 miles are in Paraguay; the last 3 are in Argentina. It runs through 5 regions: Asunción, Central, Paraguarí, Misiones, Itapúa. Of the 3 stops listed below, 1 are within a mile of the road.
Which roads connect Asunción and Posadas
| Road | Route miles (from–to) | Length, mi | Region |
|---|---|---|---|
| local roads | 0–7 | 7 | Asunción |
| PY01 | 7–27 | 20 | Asunción, Central |
| local roads | 27–34 | 7 | Central |
| PY18 | 34–50 | 16 | Central, Paraguarí |
| connecting roads | 50–52 | 2 | Paraguarí |
| PY01 | 52–224 | 172 | Paraguarí, Misiones, Itapúa |
| connecting roads | 224–226 | 2 | Itapúa |
| PY06 | 226–229 | 3 | Itapúa |
| connecting roads | 229–231 | 2 | Itapúa |
| local roads | 231–234 | 3 | Misiones |
- Mile 10 of this route: Asunción → Central (region line)
- Mile 39 of this route: Central → Paraguarí (region line)
- Mile 102 of this route: Paraguarí → Misiones (region line)
- Mile 176 of this route: Misiones → Itapúa (region line)
- Mile 231 of this route: Itapúa → Misiones (international border)
Breaking up the drive: stops between Asunción and Posadas
- Right off the route (under 1 mile): Mission San Ignacio Guazú (mile 139)
- Nature and outdoors: Ypoá National Park (mile 58)
- Museums and history: Mission San Ignacio Guazú (mile 139), La Santísima Trinidad de Paraná (mile 225)
Ypoá National Park
Ypoá National Park is a protected area in Paraguay that takes in Lake Ypoá.
Mission San Ignacio Guazú
San Ignacio Guazú was one of the missions the Society of Jesus founded in the Jesuit province of Paraguay, located in the city of San Ignacio Guazú in Misiones department.
La Santísima Trinidad de Paraná
La Santísima Trinidad de Paraná is a former Jesuit reduction in Paraguay, one of the many mission colonies established in South America in the 17th and 18th centuries.
When you get to Posadas
Municipal Museum of Fine Arts Lucas Braulio Areco
Also known as Palacio del Mate, Posadas' municipal fine arts museum, named for Lucas Braulio Areco, opened on October 18, 1952.
Anibal Cambas Regional Museum
In Posadas, the Aníbal Cambas Regional Museum (Museo Regional Aníbal Cambas) has been open for 75 years, making it the oldest museum in the capital of Misiones.
Posadas Cathedral
St. Joseph's Cathedral, also called Posadas Cathedral, is the main Catholic church of Posadas, capital of Misiones province.
More drives to Posadas
More drives from Asunción
- Asunción to Pedro Juan Caballero
- Asunción to Ciudad del Este
- Asunción to Campo Grande, Brazil
- Asunción to Londrina, Brazil
- Asunción to Maringá, Brazil
- Asunción to Ponta Grossa, Brazil
Frequently asked questions
How long is the drive from Asunción to Posadas, Argentina?
About 6 h 1 min of driving without stops, over 234 miles.
What is the driving distance from Asunción to Posadas, Argentina?
About 234 miles (377 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 Asunción to Posadas drive cross the border?
At about mile 231, from Paraguay into Argentina, at Posadas–Encarnación.
What do U.S. citizens need to drive from Asunción 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.)
What does the U.S. travel advisory say about the Asunción to Posadas drive?
The U.S. State Department rates Paraguay Level 1: Exercise Normal Precautions; Argentina Level 1: Exercise Normal Precautions. Read the full advisory before you go.
What roads does the drive from Asunción to Posadas use?
In order: PY01, PY18 and PY06. The road-by-road table above shows the route miles for each one.
What are good stops between Asunción and Posadas?
Closest to the road: Ypoá National Park (national park, mile 58, 9 mi from the route); Mission San Ignacio Guazú (jesuit mission ruins, mile 139, 0.3 mi from the route); La Santísima Trinidad de Paraná (jesuit mission ruins, mile 225, 16 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.