# Distance from Hong Kong (HKG) to Sion (SIR)

> 9,425 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,425 km / 5,856 mi / 5,089 nm
- **Estimated flight time**: 12h
- **Heading**: 318° (northwest)
- **Return heading**: 63° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Hong Kong) → Switzerland
- **Intercontinental**: Asia → Europe
- **Time difference**: -6h (When it's 03:30 in Hong Kong, it's 21:30 in Sion)
- **Elevation difference**: 1,557 ft (SIR is higher than HKG)

## Airports

### [Chek Lap Kok International Airport (HKG)](https://www.flightduration.online/airport/hkg-hong-kong-chek-lap-kok-international-airport/1ef266df-f178-6656-ae1f-06bb2780ed98)

- City: Hong Kong, Hong Kong
- ICAO: VHHH
- Timezone: Asia/Hong_Kong
- Coordinates: 22.310000, 113.920000
- Elevation: 28 ft

### [Sion Airport (SIR)](https://www.flightduration.online/airport/sir-sion-sion-airport/1ef266df-5741-6844-a33f-06bb2780ed98)

- City: Sion, Switzerland
- ICAO: LSGS
- Timezone: Europe/Zurich
- Coordinates: 46.220000, 7.330000
- Elevation: 1,585 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 03:30 in Hong Kong, it's 21:30 in Sion.
With a 6-hour time difference, expect significant jet lag.

## Related

- [Chek Lap Kok International Airport (HKG)](https://www.flightduration.online/airport/hkg-hong-kong-chek-lap-kok-international-airport/1ef266df-f178-6656-ae1f-06bb2780ed98)
- [Sion Airport (SIR)](https://www.flightduration.online/airport/sir-sion-sion-airport/1ef266df-5741-6844-a33f-06bb2780ed98)
- [Flight duration calculator](/#calculator)