# Distance from Osan Air Base (OSN) to Bucharest (OTP)

> 7,963 km · estimated flight time 10h · Long-haul route.

## Summary

- **Distance**: 7,963 km / 4,948 mi / 4,300 nm
- **Estimated flight time**: 10h
- **Heading**: 313° (northwest)
- **Return heading**: 56° (northeast)
- **Classification**: Long-haul
- **Type**: International (South Korea) → Romania
- **Intercontinental**: Asia → Europe
- **Time difference**: -6h (When it's 22:34 in Osan Air Base, it's 16:34 in Bucharest)
- **Elevation difference**: 276 ft (OTP is higher 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

### [Henri Coanda International Airport (OTP)](https://www.flightduration.online/airport/otp-bucharest-henri-coanda-international-airport/1ef266df-5682-65f2-900a-06bb2780ed98)

- City: Bucharest, Romania
- ICAO: LROP
- Timezone: Europe/Bucharest
- Coordinates: 44.570000, 26.100000
- Elevation: 314 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 22:34 in Osan Air Base, it's 16:34 in Bucharest.
With a 6-hour time difference, expect significant jet lag.

## Related

- [Osan Air Base (OSN)](https://www.flightduration.online/airport/osn-osan-air-base/1ef266df-8e18-641c-9d4f-06bb2780ed98)
- [Henri Coanda International Airport (OTP)](https://www.flightduration.online/airport/otp-bucharest-henri-coanda-international-airport/1ef266df-5682-65f2-900a-06bb2780ed98)
- [Flight duration calculator](/#calculator)