# Distance from Asmara (ASM) to San Francisco (SFO)

> 13,815 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,815 km / 8,584 mi / 7,460 nm
- **Estimated flight time**: 17h
- **Heading**: 342° (north northwest)
- **Return heading**: 22° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Eritrea) → United States
- **Intercontinental**: Africa → North America
- **Time difference**: -10h (When it's 21:56 in Asmara, it's 11:56 in San Francisco)
- **Elevation difference**: 7,648 ft (SFO is lower than ASM)

## Airports

### [Asmara International Airport (ASM)](https://www.flightduration.online/airport/asm-asmara-asmara-international-airport/1ef266de-eba3-6f4c-854f-06bb2780ed98)

- City: Asmara, Eritrea
- ICAO: HHAS
- Timezone: Africa/Asmara
- Coordinates: 15.290000, 38.910000
- Elevation: 7,661 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 21:56 in Asmara, it's 11:56 in San Francisco.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Asmara International Airport (ASM)](https://www.flightduration.online/airport/asm-asmara-asmara-international-airport/1ef266de-eba3-6f4c-854f-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)