# Distance from Christchurch (CHC) to Selibaby (SEY)

> 16,835 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,835 km / 10,461 mi / 9,090 nm
- **Estimated flight time**: 21h
- **Heading**: 170° (south)
- **Return heading**: 187° (south)
- **Classification**: Ultra-long-haul
- **Type**: International (New Zealand) → Mauritania
- **Intercontinental**: Oceania → Africa
- **Time difference**: -12h (When it's 16:23 in Christchurch, it's 04:23 in Selibaby)
- **Elevation difference**: 96 ft (SEY is higher 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

### [Selibaby Airport (SEY)](https://www.flightduration.online/airport/sey-selibaby-selibaby-airport/1ef266de-e94f-602a-835b-06bb2780ed98)

- City: Selibaby, Mauritania
- ICAO: GQNS
- Timezone: Africa/Nouakchott
- Coordinates: 15.180000, -12.210000
- Elevation: 219 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 16:23 in Christchurch, it's 04:23 in Selibaby.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Christchurch International Airport (CHC)](https://www.flightduration.online/airport/chc-christchurch-christchurch-international-airport/1ef266df-7661-64f4-a788-06bb2780ed98)
- [Selibaby Airport (SEY)](https://www.flightduration.online/airport/sey-selibaby-selibaby-airport/1ef266de-e94f-602a-835b-06bb2780ed98)
- [Flight duration calculator](/#calculator)