Distance from Tehran to Istanbul
The distance between Tehran, Iran and Istanbul, Turkey is 2,039 km (1,267 miles) in a straight line. If a road route exists, expect roughly 2549 km (1584 miles) by car — around 31 h 52 min of driving.
| Measure | Value |
|---|---|
| Straight-line distance | 2,039 km / 1,267 mi |
| Road distance (estimate) | ≈ 2549 km / 1584 mi |
| Driving time (estimate) | ≈ 31 h 52 min |
| Flight time (estimate) | ≈ 2 h 54 min |
Road distance and travel times are estimates based on the straight-line distance (road factor 1.25, average speed 80 km/h) — actual routes vary.
| Place | Latitude | Longitude |
|---|---|---|
| Tehran, Iran | 35.6863968 | 51.4328575 |
| Istanbul, Turkey | 41.0129952 | 28.9747973 |
Frequently asked questions
How far is Istanbul from Tehran?
The straight-line (air) distance from Tehran, Iran to Istanbul, Turkey is 2,039 km (1,267 miles). By road it is roughly 2549 km (1584 miles), depending on the route.
How long does it take to drive from Tehran to Istanbul?
Approximately 31 h 52 min, assuming an 80 km/h average over an estimated road distance of 2549 km. Actual time depends on the route, traffic and border crossings.
How long is the flight from Tehran to Istanbul?
A direct flight covers 2,039 km in about 2 h 54 min at typical cruise speed, plus airport time. Not all city pairs have direct flights.
How do I calculate distances for a whole list of locations?
Upload a CSV or Excel spreadsheet to the batch distance calculator — it computes the distance for every origin–destination row at once. The first records are free to try.
Related distances
Distance from Istanbul to Tehran (reverse route)