# Distance from Washington (DCA) to Parapat-Sumatra Island (SIW)

> 15,380 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 15,380 km / 9,557 mi / 8,304 nm
- **Estimated flight time**: 19h
- **Heading**: 6° (north)
- **Return heading**: 355° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Indonesia
- **Intercontinental**: North America → Asia
- **Time difference**: +11h (When it's 18:02 in Washington, it's 05:02 in Parapat-Sumatra Island)
- **Elevation difference**: 3,067 ft (SIW is higher than DCA)

## Airports

### [Ronald Reagan Washington Ntl Airport (DCA)](https://www.flightduration.online/airport/dca-washington-ronald-reagan-washington-ntl-airport/1ef266df-16de-6284-ae10-06bb2780ed98)

- City: Washington, United States
- ICAO: KDCA
- Timezone: America/New_York
- Coordinates: 38.850000, -77.040000
- Elevation: 14 ft

### [Parapat Airport (SIW)](https://www.flightduration.online/airport/siw-parapat-sumatra-island-parapat-airport/1ef266df-fd72-6db2-b9aa-06bb2780ed98)

- City: Parapat-Sumatra Island, Indonesia
- ICAO: WIMP
- Timezone: Asia/Jakarta
- Coordinates: 2.670000, 98.930000
- Elevation: 3,081 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 18:02 in Washington, it's 05:02 in Parapat-Sumatra Island.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Ronald Reagan Washington Ntl Airport (DCA)](https://www.flightduration.online/airport/dca-washington-ronald-reagan-washington-ntl-airport/1ef266df-16de-6284-ae10-06bb2780ed98)
- [Parapat Airport (SIW)](https://www.flightduration.online/airport/siw-parapat-sumatra-island-parapat-airport/1ef266df-fd72-6db2-b9aa-06bb2780ed98)
- [Flight duration calculator](/#calculator)