The straight-line distance from Istanbul, Turkey to Tehran, Iran is 2,035 km (1,265 miles).Tehran is E of Istanbul.
Distance (km)
2,035
straight line
Distance (miles)
1,265
straight line
Flight Time
3 hr
estimated direct
Direction
E
100° 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 | Istanbul, Turkey |
| To | Tehran, Iran |
| Straight-line Distance | 2,035 km (1,265 miles) |
| Bearing | 100° (E) |
| Coordinates (Istanbul) | 41.0082°, 28.9784° |
| Coordinates (Tehran) | 35.6892°, 51.3890° |
The straight-line (as the crow flies) distance from Istanbul to Tehran is 2,035 km (1,265 miles). Tehran is E of Istanbul.
A direct flight from Istanbul to Tehran takes approximately 3 hr, based on an average cruising speed of 800 km/h plus time for takeoff and landing.
Driving from Istanbul to Tehran 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.
Tehran is E (100 degrees) from Istanbul.
The distance from Tehran to Istanbul 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.