# Distance from Altenrhein (ACH) to Hong Kong (HKG)

> 9,211 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,211 km / 5,723 mi / 4,973 nm
- **Estimated flight time**: 12h
- **Heading**: 65° (east northeast)
- **Return heading**: 319° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Switzerland) → Hong Kong
- **Intercontinental**: Europe → Asia
- **Time difference**: +6h (When it's 23:26 in Altenrhein, it's 05:26 in Hong Kong)
- **Elevation difference**: 1,278 ft (HKG is lower than ACH)

## Airports

### [St Gallen Altenrhein Airport (ACH)](https://www.flightduration.online/airport/ach-altenrhein-st-gallen-altenrhein-airport/1ef266df-5802-6f44-959c-06bb2780ed98)

- City: Altenrhein, Switzerland
- ICAO: LSZR
- Timezone: Europe/Zurich
- Coordinates: 47.480000, 9.560000
- Elevation: 1,306 ft

### [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

## 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 23:26 in Altenrhein, it's 05:26 in Hong Kong.
With a 6-hour time difference, expect significant jet lag.

## Related

- [St Gallen Altenrhein Airport (ACH)](https://www.flightduration.online/airport/ach-altenrhein-st-gallen-altenrhein-airport/1ef266df-5802-6f44-959c-06bb2780ed98)
- [Chek Lap Kok International Airport (HKG)](https://www.flightduration.online/airport/hkg-hong-kong-chek-lap-kok-international-airport/1ef266df-f178-6656-ae1f-06bb2780ed98)
- [Flight duration calculator](/#calculator)