# Distance from Adelaide (ADL) to Williston (XWA)

> 14,783 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,783 km / 9,186 mi / 7,982 nm
- **Estimated flight time**: 18h
- **Heading**: 54° (northeast)
- **Return heading**: 262° (west)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → United States
- **Intercontinental**: Oceania → North America
- **Time difference**: -14.5h (When it's 04:59 in Adelaide, it's 14:29 in Williston)
- **Elevation difference**: 2,336 ft (XWA is higher than ADL)

## Airports

### [Adelaide International Airport (ADL)](https://flightduration.online/airport/adl-adelaide-adelaide-international-airport/1ef266e0-1682-610e-a772-06bb2780ed98)

- City: Adelaide, Australia
- ICAO: YPAD
- Timezone: Australia/Adelaide
- Coordinates: -34.950000, 138.530000
- Elevation: 20 ft

### [Williston Basin International Airport (XWA)](https://flightduration.online/airport/xwa-williston-williston-basin-international-airport/1ef266df-40d8-6bfc-91d9-06bb2780ed98)

- City: Williston, United States
- ICAO: KXWA
- Timezone: America/Chicago
- Coordinates: 48.260000, -103.750000
- Elevation: 2,356 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 04:59 in Adelaide, it's 14:29 in Williston.
With a 14.5-hour time difference, expect significant jet lag.

## Related

- [Adelaide International Airport (ADL)](https://flightduration.online/airport/adl-adelaide-adelaide-international-airport/1ef266e0-1682-610e-a772-06bb2780ed98)
- [Williston Basin International Airport (XWA)](https://flightduration.online/airport/xwa-williston-williston-basin-international-airport/1ef266df-40d8-6bfc-91d9-06bb2780ed98)
- [Flight duration calculator](/#calculator)