# Distance from Christchurch (CHC) to Seosan (HMY)

> 10,055 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,055 km / 6,248 mi / 5,430 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 08:07 in Christchurch, it's 05:07 in Seosan)
- **Elevation difference**: 84 ft (HMY 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

### [Seosan Air Base (HMY)](https://www.flightduration.online/airport/hmy-seosan-seosan-air-base/1ef266df-8e37-6862-80fa-06bb2780ed98)

- City: Seosan, South Korea
- ICAO: RKTP
- Timezone: Asia/Seoul
- Coordinates: 36.700000, 126.490000
- Elevation: 39 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 08:07 in Christchurch, it's 05:07 in Seosan.
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)
- [Seosan Air Base (HMY)](https://www.flightduration.online/airport/hmy-seosan-seosan-air-base/1ef266df-8e37-6862-80fa-06bb2780ed98)
- [Flight duration calculator](/#calculator)