# Distance from Osan Air Base (OSN) to Singapore (SIN)

> 4,623 km · estimated flight time 6h · Long-haul route.

## Summary

- **Distance**: 4,623 km / 2,873 mi / 2,496 nm
- **Estimated flight time**: 6h
- **Heading**: 216° (southwest)
- **Return heading**: 28° (north northeast)
- **Classification**: Long-haul
- **Type**: International (South Korea) → Singapore
- **Time difference**: -1h (When it's 07:15 in Osan Air Base, it's 06:15 in Singapore)
- **Elevation difference**: 16 ft (SIN is lower than OSN)

## Airports

### [Osan Air Base (OSN)](https://www.flightduration.online/airport/osn-osan-air-base/1ef266df-8e18-641c-9d4f-06bb2780ed98)

- City: Osan Air Base, South Korea
- ICAO: RKSO
- Timezone: Asia/Seoul
- Coordinates: 37.090000, 127.030000
- Elevation: 38 ft

### [Singapore Changi International Airport (SIN)](https://www.flightduration.online/airport/sin-singapore-singapore-changi-international-airport/1ef266e0-00ca-656e-b481-06bb2780ed98)

- City: Singapore, Singapore
- ICAO: WSSS
- Timezone: Asia/Singapore
- Coordinates: 1.350000, 103.990000
- Elevation: 22 ft

## Route notes

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 07:15 in Osan Air Base, it's 06:15 in Singapore.

## Related

- [Osan Air Base (OSN)](https://www.flightduration.online/airport/osn-osan-air-base/1ef266df-8e18-641c-9d4f-06bb2780ed98)
- [Singapore Changi International Airport (SIN)](https://www.flightduration.online/airport/sin-singapore-singapore-changi-international-airport/1ef266e0-00ca-656e-b481-06bb2780ed98)
- [Flight duration calculator](/#calculator)