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Distance from Istanbul to Sofia

Straight line

503 km
313 mi · 272 NM

By road

548 km
340 mi

Travel time

5 h 34 min
flight ≈ 1 h 8 min

Direction

WNW 294°
initial bearing

Open in the calculator (stops, directions, fuel cost) → Sofia → Istanbul

How far is Istanbul from Sofia?

Istanbul (Türkiye) and Sofia (Bulgaria) are a medium distance apart: 503 km in a straight line, that is 313 miles or 272 nautical miles. The distance is measured over the Earth's surface (WGS84 ellipsoid) along the shortest possible path.

By road, Istanbul to Sofia is 548 km (340 miles), about 5 h 34 min by car on the fastest route, without traffic or stops. The road is 9% longer than the straight line.

From Istanbul, Sofia lies to the north-west (initial bearing 294°). The route crosses from Türkiye into Bulgaria. The halfway point is at 41.8900°, 26.1740°.

A direct flight would take about 1 h 8 min (800 km/h cruise plus take-off and landing). The road distance and driving time are calculated on the map from OpenStreetMap roads.

Frequently asked questions

How far is Istanbul from Sofia?

By road it is 548 km (340 miles) from Istanbul to Sofia; in a straight line it is 503 km (313 miles).

How long is the drive from Istanbul to Sofia?

About 5 h 34 min on the fastest route (548 km), without traffic or stops.

In which direction is Sofia from Istanbul?

Sofia is to the north-west of Istanbul, at an initial bearing of 294°.

How long is the flight from Istanbul to Sofia?

A direct flight would take about 1 h 8 min at an average cruising speed of 800 km/h.

How is the distance calculated?

The straight-line distance is computed on the WGS84 ellipsoid with the Vincenty formula, accurate to the metre. The road distance comes from OpenStreetMap roads.