Distance from Istanbul to Tehran
The great-circle distance between Istanbul, Türkiye and Tehran, Iran is 2,040 km (1,268 mi · 1,102 nmi) — the shortest possible route over the Earth's surface, the path aircraft approximately follow.
The numbers
- Great-circle distance
- 2,040 km · 1,268 mi · 1,102 nmi
- Initial bearing Istanbul → Tehran
- 100° (E)
- Initial bearing Tehran → Istanbul
- 294° (WNW)
- Nonstop flight (rough estimate)
- ≈ 3 h 04 min
- Time zones
- Istanbul UTC+03:00 · Tehran UTC+03:30 (+0.5 h)
- Sunrise gap today
- 79 min — the sun rises later in Istanbul
Flight time is a cruise-speed approximation (no routing/wind); driving distance depends on roads and is typically 20–40% longer than great-circle.
The two cities
- Istanbul
- 41.0138, 28.9497
- Sunrise / sunset today
- 03:07 UTC / 17:14 UTC
- Tehran
- 35.6944, 51.4215
- Sunrise / sunset today
- 01:48 UTC / 15:33 UTC
Open in the distance calculator Find the halfway point
Distances here are straight-line (great-circle). Road routes typically run 1.2–1.4× longer — here's why, with the visual.