# Distance from Washington (DCA) to Smithton Airport (SIO)

> 16,447 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 16,447 km / 10,220 mi / 8,881 nm
- **Estimated flight time**: 20h
- **Heading**: 253° (west southwest)
- **Return heading**: 80° (east)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Australia
- **Intercontinental**: North America → Oceania
- **Time difference**: +14h (When it's 00:46 in Washington, it's 14:46 in Smithton Airport)
- **Elevation difference**: 17 ft (SIO 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

### [Smithton Airport (SIO)](https://www.flightduration.online/airport/sio-smithton-airport/1ef266e0-1932-6eee-8e2b-06bb2780ed98)

- City: Smithton Airport, Australia
- ICAO: YSMI
- Timezone: Australia/Hobart
- Coordinates: -40.840000, 145.080000
- Elevation: 31 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 00:46 in Washington, it's 14:46 in Smithton 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)
- [Smithton Airport (SIO)](https://www.flightduration.online/airport/sio-smithton-airport/1ef266e0-1932-6eee-8e2b-06bb2780ed98)
- [Flight duration calculator](/#calculator)