Santiago to Buenos Aires Distance

862 miles•1388 km•17.9 hours

Driving distance and route information from Santiago, Chileto Buenos Aires, Argentina. Compare multiple routes and get detailed travel information.

⭐

FASTEST ROUTE

862.45 mi

(1387.98 km)

⏱️17h 56m

Via RN7

RN7

💰 Tolls

🔄

ALTERNATIVE ROUTE

947.91 mi

(1525.51 km)

⏱️19h 26m

Via RN7 → RN40 → RN144 → RN143

RN7 → RN40

💰 Tolls

📏 Straight-line distance: 706 miles (1137 km)

See crow flies distance →

Share this route

citytocitydistances.com/santiago-to-buenos-aires

Open this route in your nav app

🗺️ Google Maps 🍎 Apple Maps ⚡ Waze

Complete Driving Guide: Santiago to Buenos Aires

Essential Route Information

TOTAL DISTANCE

862 mi

1388 kilometers

DRIVING TIME

17.9 hours

1074 minutes

FUEL ESTIMATE

116 L

$174 cost

📍 Route Overview

Starting PointSantiago, Santiago Metropolitan Region

DestinationBuenos Aires, Autonomous City of Buenos Aires

Route Options2 available routes

Countries Crossed2+ countries

Time Zone ChangesCheck local times

🚗 Driving Details

Average Speed78 km/h

Straight-line Distance1137 km

Route Efficiency82%

Toll RoadsYes - Budget required

Ferry CrossingsNo ferries

Compare All Routes from Santiago to Buenos Aires

Route Type	Distance	Drive Time	Avg Speed	Tolls
⭐ Fastest Route	862 mi (1388 km)	17.9 hours	77 km/h	✅ Yes
Alternative 1	948 mi (1526 km)	19.4 hours	78 km/h	✅ Yes

Complete Journey Overview: Santiago to Buenos Aires

The road journey from Santiago to Buenos Aires spans approximately 862 miles (1388 kilometers), making it a long-distance drive that typically requires 17.9 hours of continuous driving under normal traffic conditions.

This route connects Santiago Metropolitan Region, Chile with Autonomous City of Buenos Aires, Argentina, traversing across international borders between Chile and Argentina. The journey offers 2 distinct routing options, each with unique advantages in terms of distance, time, or scenic value.

The fastest driving route from Santiago to Buenos Aires follows the RN7 corridor, maintaining an average speed of approximately 78 km/h. This corridor uses toll roads — budget for tolls along the way. Travelers also cross the international border from Chile into Argentina; allow time for customs and ensure passports are valid.

🗺️ Travel Planning Essentials

✓

Fuel Planning: Expect to use approximately 34 gallons (116 liters) of fuel for this 862 mile journey. Plan fuel stops every 250-300 miles.

✓

Rest Stops: For safety, plan a 15-minute break every 2 hours of driving. Total journey with breaks: 20.6 hours.

✓

Best Travel Times: Avoid peak traffic hours (7-9 AM and 5-7 PM) in major cities along your route for optimal travel time.

✓

Weather Check: Monitor weather conditions along the entire route, especially during winter months or rainy seasons.

💰 Cost Estimation Guide

Fuel Cost (approximate)$121

Toll Costs$43

Vehicle Wear & Tear (total, ~$0.25/mi)$216

Total Trip Cost$379

* Costs are estimates based on average fuel prices and vehicle maintenance. Actual costs may vary.

Alternative Transportation Options

🚗

By Car

17.9 hours

862 miles

✈️

By Plane

1.4 hours flight

1137 km direct

🚌

By Bus

23.3 hours

Multiple stops

More routes from Santiago

View all distances from Santiago →

More routes from Buenos Aires

View all distances from Buenos Aires →

Santiago to Buenos Aires - Frequently Asked Questions

What is the driving distance from Santiago to Buenos Aires?

The driving distance from Santiago to Buenos Aires is 862 miles (1388 km) by the fastest route, which follows RN7. The straight-line ("as the crow flies") distance is 1137 km — driving distances are typically 20-40% longer than straight-line because roads must navigate around terrain and built environment.

How long does it take to drive from Santiago to Buenos Aires?

The drive from Santiago to Buenos Aires takes approximately 17h 56m of continuous driving at an average speed of 78 km/h. With a 15-minute rest stop every two hours, plan on roughly 20.6 hours of total trip time. Add additional time for traffic, weather, or border crossings.

What is the fastest route from Santiago to Buenos Aires?

The fastest driving route from Santiago to Buenos Aires is 862 miles (1388 km) via RN7, taking about 17h 56m. This corridor follows the major highway connection between the two cities and is optimized for travel time.

Are there alternative routes from Santiago to Buenos Aires?

Yes, 2 routing options exist between Santiago and Buenos Aires. Alternatives have similar total distance but use different road segments — useful if the primary corridor has heavy traffic or construction.

Does the route from Santiago to Buenos Aires include tolls?

Yes, the fastest driving route from Santiago to Buenos Aires includes toll roads along RN7. Toll costs vary by vehicle class and exact path; check the route summary cards above for toll-road indicators on each route option.

How much fuel does it take to drive from Santiago to Buenos Aires?

A standard car at 30 mpg uses approximately 29 gallons (116 liters) of fuel for the 862-mile (1388-km) drive from Santiago to Buenos Aires. At $3.50 per gallon that is roughly $102 in fuel cost; less efficient vehicles or higher local fuel prices will increase this proportionally.

How do I navigate from Santiago to Buenos Aires?

Use the "Open this route in your nav app" buttons above the journey guide to launch turn-by-turn directions in Google Maps, Apple Maps, or Waze. Each link pre-fills Santiago as the origin and Buenos Aires as the destination, so navigation begins as soon as the app opens.