# Distance from Washington (IAD) to Sishen (SIS)

> 12,748 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,748 km / 7,921 mi / 6,884 nm
- **Estimated flight time**: 16h
- **Heading**: 107° (east southeast)
- **Return heading**: 303° (west northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → South Africa
- **Intercontinental**: North America → Africa
- **Time difference**: +6h (When it's 02:51 in Washington, it's 08:51 in Sishen)
- **Elevation difference**: 3,536 ft (SIS is higher than IAD)

## Airports

### [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)

- City: Washington, United States
- ICAO: KIAD
- Timezone: America/New_York
- Coordinates: 38.900000, -77.500000
- Elevation: 312 ft

### [Sishen Airport (SIS)](https://www.flightduration.online/airport/sis-sishen-sishen-airport/1ef266de-d48f-6414-bfd9-06bb2780ed98)

- City: Sishen, South Africa
- ICAO: FASS
- Timezone: Africa/Johannesburg
- Coordinates: -27.650000, 23.000000
- Elevation: 3,848 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 02:51 in Washington, it's 08:51 in Sishen.
With a 6-hour time difference, expect significant jet lag.

## Related

- [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)
- [Sishen Airport (SIS)](https://www.flightduration.online/airport/sis-sishen-sishen-airport/1ef266de-d48f-6414-bfd9-06bb2780ed98)
- [Flight duration calculator](/#calculator)