# Distance from Washington (IAD) to Kupang-Timor Island (KOE)

> 16,191 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 16,191 km / 10,061 mi / 8,742 nm
- **Estimated flight time**: 20h
- **Heading**: 321° (northwest)
- **Return heading**: 30° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Indonesia
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 18:24 in Washington, it's 06:24 in Kupang-Timor Island)
- **Elevation difference**: 23 ft (KOE 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

### [El Tari Airport (KOE)](https://www.flightduration.online/airport/koe-kupang-timor-island-el-tari-airport/1ef266df-fae6-6c88-85f8-06bb2780ed98)

- City: Kupang-Timor Island, Indonesia
- ICAO: WATT
- Timezone: Asia/Makassar
- Coordinates: -10.170000, 123.670000
- Elevation: 335 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 18:24 in Washington, it's 06:24 in Kupang-Timor Island.
With a 12-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)
- [El Tari Airport (KOE)](https://www.flightduration.online/airport/koe-kupang-timor-island-el-tari-airport/1ef266df-fae6-6c88-85f8-06bb2780ed98)
- [Flight duration calculator](/#calculator)