# Distance from Portsmouth (PSM) to Shenzhen (SZX)

> 12,692 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,692 km / 7,886 mi / 6,853 nm
- **Estimated flight time**: 16h
- **Heading**: 355° (north)
- **Return heading**: 4° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 02:56 in Portsmouth, it's 14:56 in Shenzhen)
- **Elevation difference**: 87 ft (SZX is lower than PSM)

## Airports

### [Portsmouth International At Pease Airport (PSM)](https://www.flightduration.online/airport/psm-portsmouth-portsmouth-international-at-pease-airport/1ef266df-33b1-6488-97e8-06bb2780ed98)

- City: Portsmouth, United States
- ICAO: KPSM
- Timezone: America/New_York
- Coordinates: 43.080000, -70.820000
- Elevation: 100 ft

### [Shenzhen Bao'an International Airport (SZX)](https://www.flightduration.online/airport/szx-shenzhen-shenzhen-baoan-international-airport/1ef266e0-1ea0-675a-a1fd-06bb2780ed98)

- City: Shenzhen, China
- ICAO: ZGSZ
- Timezone: Asia/Shanghai
- Coordinates: 22.640000, 113.810000
- Elevation: 13 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 02:56 in Portsmouth, it's 14:56 in Shenzhen.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Portsmouth International At Pease Airport (PSM)](https://www.flightduration.online/airport/psm-portsmouth-portsmouth-international-at-pease-airport/1ef266df-33b1-6488-97e8-06bb2780ed98)
- [Shenzhen Bao'an International Airport (SZX)](https://www.flightduration.online/airport/szx-shenzhen-shenzhen-baoan-international-airport/1ef266e0-1ea0-675a-a1fd-06bb2780ed98)
- [Flight duration calculator](/#calculator)