# Distance from Changhai (CNI) to San Francisco (SFO)

> 9,192 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,192 km / 5,711 mi / 4,963 nm
- **Estimated flight time**: 12h
- **Heading**: 46° (northeast)
- **Return heading**: 315° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (China) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -15h (When it's 13:55 in Changhai, it's 22:55 in San Francisco)
- **Elevation difference**: 67 ft (SFO is lower than CNI)

## Airports

### [Changhai Airport (CNI)](https://www.flightduration.online/airport/cni-changhai-changhai-airport/1ef266e0-212c-6a28-92ef-06bb2780ed98)

- City: Changhai, China
- ICAO: ZYCH
- Timezone: Asia/Shanghai
- Coordinates: 39.270000, 122.670000
- Elevation: 80 ft

### [San Francisco International Airport (SFO)](https://www.flightduration.online/airport/sfo-san-francisco-san-francisco-international-airport/1ef266df-382a-66ea-a1cc-06bb2780ed98)

- City: San Francisco, United States
- ICAO: KSFO
- Timezone: America/Los_Angeles
- Coordinates: 37.620000, -122.380000
- 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 13:55 in Changhai, it's 22:55 in San Francisco.
With a 15-hour time difference, expect significant jet lag.

## Related

- [Changhai Airport (CNI)](https://www.flightduration.online/airport/cni-changhai-changhai-airport/1ef266e0-212c-6a28-92ef-06bb2780ed98)
- [San Francisco International Airport (SFO)](https://www.flightduration.online/airport/sfo-san-francisco-san-francisco-international-airport/1ef266df-382a-66ea-a1cc-06bb2780ed98)
- [Flight duration calculator](/#calculator)