# Distance from Washington (IAD) to Kiembi Samaki (ZNZ)

> 12,740 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,740 km / 7,916 mi / 6,879 nm
- **Estimated flight time**: 16h
- **Heading**: 78° (east northeast)
- **Return heading**: 310° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Tanzania
- **Intercontinental**: North America → Africa
- **Time difference**: +7h (When it's 15:29 in Washington, it's 22:29 in Kiembi Samaki)
- **Elevation difference**: 258 ft (ZNZ 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

### [Zanzibar Airport (ZNZ)](https://www.flightduration.online/airport/znz-kiembi-samaki-zanzibar-airport/1ef266de-ef54-6e70-bc09-06bb2780ed98)

- City: Kiembi Samaki, Tanzania
- ICAO: HTZA
- Timezone: Africa/Dar_es_Salaam
- Coordinates: -6.220000, 39.220000
- Elevation: 54 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 15:29 in Washington, it's 22:29 in Kiembi Samaki.
With a 7-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)
- [Zanzibar Airport (ZNZ)](https://www.flightduration.online/airport/znz-kiembi-samaki-zanzibar-airport/1ef266de-ef54-6e70-bc09-06bb2780ed98)
- [Flight duration calculator](/#calculator)