# Distance from Christchurch (CHC) to Williams Harbour (YWM)

> 16,359 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 16,359 km / 10,165 mi / 8,833 nm
- **Estimated flight time**: 20h
- **Heading**: 57° (east northeast)
- **Return heading**: 266° (west)
- **Classification**: Ultra-long-haul
- **Type**: International (New Zealand) → Canada
- **Intercontinental**: Oceania → North America
- **Time difference**: -14.5h (When it's 23:55 in Christchurch, it's 09:25 in Williams Harbour)
- **Elevation difference**: 53 ft (YWM 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

### [Williams Harbour Airport (YWM)](https://www.flightduration.online/airport/ywm-williams-harbour-williams-harbour-airport/1ef266de-a102-6b0a-9463-06bb2780ed98)

- City: Williams Harbour, Canada
- ICAO: CCA6
- Timezone: America/St_Johns
- Coordinates: 52.570000, -55.780000
- Elevation: 70 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 23:55 in Christchurch, it's 09:25 in Williams Harbour.
With a 14.5-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)
- [Williams Harbour Airport (YWM)](https://www.flightduration.online/airport/ywm-williams-harbour-williams-harbour-airport/1ef266de-a102-6b0a-9463-06bb2780ed98)
- [Flight duration calculator](/#calculator)