# Distance from Hong Kong (HKG) to Portsmouth (PMH)

> 12,995 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,995 km / 8,075 mi / 7,017 nm
- **Estimated flight time**: 16h
- **Heading**: 15° (north northeast)
- **Return heading**: 343° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Hong Kong) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12h (When it's 08:46 in Hong Kong, it's 20:46 in Portsmouth)
- **Elevation difference**: 635 ft (PMH 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

### [Greater Portsmouth Regional Airport (PMH)](https://www.flightduration.online/airport/pmh-portsmouth-greater-portsmouth-regional-airport/1ef266df-3304-6558-b825-06bb2780ed98)

- City: Portsmouth, United States
- ICAO: KPMH
- Timezone: America/New_York
- Coordinates: 38.840000, -82.850000
- Elevation: 663 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 08:46 in Hong Kong, it's 20:46 in Portsmouth.
With a 12-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)
- [Greater Portsmouth Regional Airport (PMH)](https://www.flightduration.online/airport/pmh-portsmouth-greater-portsmouth-regional-airport/1ef266df-3304-6558-b825-06bb2780ed98)
- [Flight duration calculator](/#calculator)