---
title: "Istanbul to Singapore (IST → SIN): distance and flight time · Orbit"
description: "Istanbul to Singapore is 8,681 km (5,394 mi) great circle, an estimated 11h 17m in the air. The route, what it flies over, and why the short way is not the straight line on a map."
url: https://orbitflights.app/routes/ist-to-sin
---

IST → SIN

# Istanbul to Singapore: distance, flight time and the route it really takes

İstanbul to Singapore Changi is 8,681 km of great circle — 5,394 mi — and an estimated 11h 17m in the air. It crosses from Europe to Asia.

**Great circle**
8,681 km
5,394 mi

**Estimated in the air**
11h 17m
block time

**Furthest from equator**
41.3°N
at 0% along

**One lap of Earth**
21.7%
of 40,075 km

Of the [292 routes catalogued here](https://orbitflights.app/routes), this is the 70th longest.

The Istanbul to Singapore route drawn as a great circle arc on a globe

## What the aircraft actually flies over

From Istanbul the path crosses Turkey, then Iran, then Afghanistan, then Pakistan, then India, then 2,387 km of open water, then Malaysia.

The furthest the great circle gets from the equator is 41.3°N, 0% of the way along.

Flying the line that looks straight on a Mercator map — one constant compass bearing — would cover 8,790 km. That is 109 km further, about 1% more, and roughly 8m of extra flying.

Leaving Istanbul the aircraft points east (99°); it arrives into Singapore heading south-east (132°). That is 33° of drift without a single turn — the compass moves because the path is a curve on a sphere, not because the aircraft does.

One economy seat on it is about 1.23 t of CO₂e each way, counting non-CO₂ warming.

[IST–SIN carbon footprint →](https://orbitflights.app/tools/flight-carbon-calculator?from=IST&to=SIN) [Map this route →](https://orbitflights.app/tools/flight-route-map?r=IST-SIN)

From

IST

## İstanbul

Istanbul, Turkey · Europe

41.3°N, 28.7°E

[IST airport →](https://orbitflights.app/airports/ist) [Flights to Istanbul →](https://orbitflights.app/flights-to/istanbul)

To

SIN

## Singapore Changi

Singapore, Singapore · Asia

1.4°N, 104.0°E

[SIN airport →](https://orbitflights.app/airports/sin) [Flights to Singapore →](https://orbitflights.app/flights-to/singapore)

## Istanbul to Singapore, asked and answered

**How far is Istanbul to Singapore?**
Istanbul to Singapore (IST to SIN) is 8,681 km, or 5,394 mi, measured as great circle distance between the two airports.

**How long is the flight from Istanbul to Singapore?**
About 11h 17m in the air. That is an estimate from the distance at a typical airliner block speed, plus half an hour for taxi, climb and descent; published schedules vary with winds and routing.

**What route does a Istanbul to Singapore flight take?**
The great circle passes over Turkey, then Iran, then Afghanistan, then Pakistan, then India, then 2,387 km of open water, then Malaysia. It reaches 41.3°N at its furthest from the equator.

## Where these numbers come from

Distances are computed from the two airports’ own coordinates, not looked up from published routes. Times are estimates, not schedules.

[Why the shortest path is a curve →](https://orbitflights.app/blog/great-circle-routes-explained)

## Flown this one?

Orbit logs it in two taps and draws the arc on your own globe, along with every other flight you can remember. Free for your first 15.

[Download now](https://play.google.com/store/apps/details?id=com.qwertybit.orbit)

## Nearby routes

[IST → NRT Istanbul to Tokyo 8,980 km](https://orbitflights.app/routes/ist-to-nrt) [IST → JFK Istanbul to New York 8,026 km](https://orbitflights.app/routes/ist-to-jfk) [IST → BKK Istanbul to Bangkok 7,514 km](https://orbitflights.app/routes/ist-to-bkk) [IST → JNB Istanbul to Johannesburg 7,496 km](https://orbitflights.app/routes/ist-to-jnb) [FRA → SIN Frankfurt to Singapore 10,280 km](https://orbitflights.app/routes/fra-to-sin) [ZRH → SIN Zurich to Singapore 10,306 km](https://orbitflights.app/routes/zrh-to-sin)

## Further reading

[How many miles do you have to fly around the world?](https://orbitflights.app/blog/how-many-miles-to-fly-around-the-world) [What is on the exact opposite side of the world?](https://orbitflights.app/blog/opposite-side-of-the-world) [What's actually worth counting in a flight log](https://orbitflights.app/blog/what-is-worth-counting-in-a-flight-log)

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Markdown copy of https://orbitflights.app/routes/ist-to-sin for language models and agents. Site index: https://orbitflights.app/llms.txt