The straight-line distance from Tehran, Iran to Istanbul, Turkey is 2,035 km (1,265 miles).Istanbul is WNW of Tehran.
Distance (km)
2,035
straight line
Distance (miles)
1,265
straight line
Flight Time
3 hr
estimated direct
Direction
WNW
294° bearing
| Mode | Estimated Time | Distance | Notes |
|---|---|---|---|
| Flight | 3 hr | 2,035 km | Direct flight at 800 km/h avg cruise speed |
| Driving | 33 hr 6 min | ~2,646 km | Avg 80 km/h, +30% route factor |
All times are estimates based on straight-line distance. Actual travel times vary by route, stops, and conditions.
| From | Tehran, Iran |
| To | Istanbul, Turkey |
| Straight-line Distance | 2,035 km (1,265 miles) |
| Bearing | 294° (WNW) |
| Coordinates (Tehran) | 35.6892°, 51.3890° |
| Coordinates (Istanbul) | 41.0082°, 28.9784° |
The straight-line (as the crow flies) distance from Tehran to Istanbul is 2,035 km (1,265 miles). Istanbul is WNW of Tehran.
A direct flight from Tehran to Istanbul takes approximately 3 hr, based on an average cruising speed of 800 km/h plus time for takeoff and landing.
Driving from Tehran to Istanbul takes approximately 33 hr 6 min. This estimate assumes an average speed of 80 km/h with a 30% route factor for indirect roads. Actual time will vary based on road conditions, traffic, and the specific route taken.
Istanbul is WNW (294 degrees) from Tehran.
The distance from Istanbul to Tehran is the same: 2,035 km (1,265 miles). Distance between two points is the same in either direction.
Distances calculated using the Haversine formula (great-circle distance). Travel time estimates are approximate.
Coordinates sourced from public geographic databases.