# Distance from Washington (IAD) to Soyo (SZA)

> 10,425 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,425 km / 6,478 mi / 5,629 nm
- **Estimated flight time**: 13h
- **Heading**: 95° (east)
- **Return heading**: 309° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Angola
- **Intercontinental**: North America → Africa
- **Time difference**: +5h (When it's 09:37 in Washington, it's 14:37 in Soyo)
- **Elevation difference**: 297 ft (SZA is lower 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

### [Soyo Airport (SZA)](https://www.flightduration.online/airport/sza-soyo-soyo-airport/1ef266de-dcef-6ab4-9d3d-06bb2780ed98)

- City: Soyo, Angola
- ICAO: FNSO
- Timezone: Africa/Luanda
- Coordinates: -6.140000, 12.370000
- Elevation: 15 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 09:37 in Washington, it's 14:37 in Soyo.
The 5-hour time difference may cause some jet lag.

## Related

- [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)
- [Soyo Airport (SZA)](https://www.flightduration.online/airport/sza-soyo-soyo-airport/1ef266de-dcef-6ab4-9d3d-06bb2780ed98)
- [Flight duration calculator](/#calculator)