Estimated travel durations
The straight-line distance from Bucharest to Istanbul is 447 kilometers (278 miles). This is the crow-flies distance calculated using the Haversine formula.
A direct flight from Bucharest to Istanbul takes approximately 2h. 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 Bucharest to Istanbul would take approximately 4h 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 Bucharest to Istanbul is 278 miles (447 km) as the crow flies.