Buenos Aires, Argentina → Rio de Janeiro, Brazil · ✈ 2h 58min · 🚗 31h 59min
1,063 nautical miles · Time difference: +1h ahead · Direction: northeast
The distance from Buenos Aires to Rio de Janeiro is 1,968 km (1,223 miles). The fastest way to travel is by flight. A direct flight takes approximately 2h 58min.
The straight-line distance from Buenos Aires, Argentina to Rio de Janeiro, Brazil is approximately 1,968 kilometers (1,223 miles or 1,063 nautical miles). This measurement uses the Haversine formula, computing the great-circle distance — the shortest path between two points on Earth's surface.
Rio de Janeiro is located northeast of Buenos Aires. Buenos Aires is in South America, in the Buenos Aires region of Argentina, while Rio de Janeiro is in South America, in Southeast, Brazil. Both cities are in South America.
| Mode | Distance | Est. Time | Best For |
|---|---|---|---|
| ✈️ Flight | 1,968 km | ~2h 58min | Best option for speed |
| 🚗 Drive | ~2,558 km | ~31h 59min | Long journey, consider stops |
| 🚂 Regular Train | ~2,362 km | ~19h 41min | Scenic but slow |
Our recommendation: flight is typically the best way to travel from Buenos Aires to Rio de Janeiro. For 1,968 km, flying saves significant time and is usually the most practical choice.
Based on an estimated road distance of 2,558 km, fuel costs for driving from Buenos Aires to Rio de Janeiro are approximately $205–$384 USD (at $0.08–$0.15 per km, depending on vehicle efficiency and local fuel prices). Additional costs may include tolls, parking, and accommodation for longer trips.
Buenos Aires sits at 34.6037°S, 58.3816°W, while Rio de Janeiro is located at 22.9068°S, 43.1729°W. The initial compass bearing from Buenos Aires to Rio de Janeiro is 53° (NE), so a great-circle flight path leaves Buenos Aires heading roughly NE. Because the Earth is curved, the actual heading shifts gradually along the route — pilots and navigation systems update it continuously instead of holding a single fixed compass bearing.
The latitude difference is 11.70° and the longitude difference is 15.21°. Each degree of latitude represents about 111 km, which is one reason cross-latitude routes feel longer even when the map looks similar to east–west journeys.
The geographic midpoint between Buenos Aires and Rio de Janeiro is approximately 28.9685°S, 50.3473°W. This is the great-circle halfway position — the spot where you would be exactly 984 km from each city. On long-haul flights this point usually falls over open ocean or remote terrain, which is why in-flight maps often look "empty" mid-route.
Rio de Janeiro is roughly 1 hour ahead of Buenos Aires. When it is 09:00 in Buenos Aires, it is approximately 10:00 in Rio de Janeiro. Daylight saving time can shift the offset by an hour during certain months, so confirm the exact difference for your specific travel dates.
Buenos Aires uses the Argentine Peso (ARS), while Rio de Janeiro uses the Brazilian Real (BRL). Plan to exchange currency before departure or use a low-fee travel card on arrival — airport rates are typically the worst available. The primary local language shifts from Spanish in Buenos Aires to Portuguese in Rio de Janeiro. Learning a few basic phrases makes a noticeable difference at hotels, restaurants, and transit hubs.
Buenos Aires is a major city in Argentina with a population of approximately 3,075,646. Located in the Buenos Aires region, it is an important hub in South America. Buenos Aires is a significant metropolitan area in Argentina with good domestic and international transport connections.
→ See all distances from Buenos Aires
Rio de Janeiro is a notable city in Brazil with a population of approximately 6,748,000. Situated in the Southeast region, it serves as a key destination in South America. Rio de Janeiro is one of Brazil's largest cities, offering major airport hubs, extensive public transport, and a wide range of accommodation options.
→ See all distances from Rio de Janeiro
1,968 km is a long-distance route that typically requires air travel. This is comparable to spanning a large continent. For context, London to Dubai is about 5,500 km.
The 1,968 km between Buenos Aires and Rio de Janeiro means a beam of light could travel this distance in approximately 6.6 milliseconds — but a flight still takes 2h 58min.
See how the Buenos Aires to Rio de Janeiro distance compares to similar routes:
The straight-line distance from Buenos Aires to Rio de Janeiro is approximately 1,968 kilometers (1,223 miles, 1,063 nautical miles).
A direct flight takes approximately 2h 58min, based on 800 km/h cruising speed plus 30 minutes for takeoff and landing.
Estimated driving time is approximately 31h 59min, based on 80 km/h average speed and roads being ~30% longer than straight-line distance.
Rio de Janeiro is approximately +1h ahead compared to Buenos Aires.
The estimated road distance is approximately 2,558 km, which is about 30% longer than the 1,968 km straight-line distance.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: April 21, 2026.