# Distance from Adelaide (ADL) to Bonthe (BTE)

> 15,770 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 15,770 km / 9,799 mi / 8,515 nm
- **Estimated flight time**: 20h
- **Heading**: 231° (southwest)
- **Return heading**: 140° (southeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → Sierra Leone
- **Intercontinental**: Oceania → Africa
- **Time difference**: -9.5h (When it's 00:38 in Adelaide, it's 15:08 in Bonthe)
- **Elevation difference**: 6 ft (BTE is lower than ADL)

## Airports

### [Adelaide International Airport (ADL)](https://www.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

### [Sherbro International Airport (BTE)](https://www.flightduration.online/airport/bte-bonthe-sherbro-international-airport/1ef266de-e7db-6ed2-aad9-06bb2780ed98)

- City: Bonthe, Sierra Leone
- ICAO: GFBN
- Timezone: Africa/Freetown
- Coordinates: 7.530000, -12.520000
- Elevation: 14 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 00:38 in Adelaide, it's 15:08 in Bonthe.
With a 9.5-hour time difference, expect significant jet lag.

## Related

- [Adelaide International Airport (ADL)](https://www.flightduration.online/airport/adl-adelaide-adelaide-international-airport/1ef266e0-1682-610e-a772-06bb2780ed98)
- [Sherbro International Airport (BTE)](https://www.flightduration.online/airport/bte-bonthe-sherbro-international-airport/1ef266de-e7db-6ed2-aad9-06bb2780ed98)
- [Flight duration calculator](/#calculator)