# Distance from Washington (DCA) to Horsham Airport (HSM)

> 16,586 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,586 km / 10,306 mi / 8,956 nm
- **Estimated flight time**: 21h
- **Heading**: 262° (west)
- **Return heading**: 74° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Australia
- **Intercontinental**: North America → Oceania
- **Time difference**: +14h (When it's 18:08 in Washington, it's 08:08 in Horsham Airport)
- **Elevation difference**: 431 ft (HSM 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

### [Horsham Airport (HSM)](https://www.flightduration.online/airport/hsm-horsham-airport/1ef266e0-0e42-6c78-b268-06bb2780ed98)

- City: Horsham Airport, Australia
- ICAO: YHSM
- Timezone: Australia/Melbourne
- Coordinates: -36.670000, 142.170000
- Elevation: 445 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 18:08 in Washington, it's 08:08 in Horsham Airport.
With a 14-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)
- [Horsham Airport (HSM)](https://www.flightduration.online/airport/hsm-horsham-airport/1ef266e0-0e42-6c78-b268-06bb2780ed98)
- [Flight duration calculator](/#calculator)