Estimated travel durations
The straight-line distance from Rio de Janeiro to Buenos Aires is 1,968 kilometers (1,223 miles). This is the crow-flies distance calculated using the Haversine formula.
A direct flight from Rio de Janeiro to Buenos Aires takes approximately 4h. This is an estimate based on an average cruising speed of 800 km/h and does not include boarding, taxiing or layover time.
Driving from Rio de Janeiro to Buenos Aires would take approximately 21h at an average speed of 85 km/h. The actual driving time may vary depending on road conditions, traffic and border crossings.
The distance from Rio de Janeiro to Buenos Aires is 1,223 miles (1,968 km) as the crow flies.