# Distance from Christchurch (CHC) to Osan Air Base (OSN)

> 10,068 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,068 km / 6,256 mi / 5,436 nm
- **Estimated flight time**: 13h
- **Heading**: 325° (northwest)
- **Return heading**: 149° (south southeast)
- **Classification**: Ultra-long-haul
- **Type**: International (New Zealand) → South Korea
- **Intercontinental**: Oceania → Asia
- **Time difference**: -3h (When it's 21:20 in Christchurch, it's 18:20 in Osan Air Base)
- **Elevation difference**: 85 ft (OSN is lower than CHC)

## Airports

### [Christchurch International Airport (CHC)](https://www.flightduration.online/airport/chc-christchurch-christchurch-international-airport/1ef266df-7661-64f4-a788-06bb2780ed98)

- City: Christchurch, New Zealand
- ICAO: NZCH
- Timezone: Pacific/Auckland
- Coordinates: -43.490000, 172.530000
- Elevation: 123 ft

### [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

## Route notes

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

Time-zone information: When it's 21:20 in Christchurch, it's 18:20 in Osan Air Base.
The 3-hour time difference may cause some jet lag.

## Related

- [Christchurch International Airport (CHC)](https://www.flightduration.online/airport/chc-christchurch-christchurch-international-airport/1ef266df-7661-64f4-a788-06bb2780ed98)
- [Osan Air Base (OSN)](https://www.flightduration.online/airport/osn-osan-air-base/1ef266df-8e18-641c-9d4f-06bb2780ed98)
- [Flight duration calculator](/#calculator)