# Distance from Adelaide (ADL) to Castries (SLU)

> 16,975 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,975 km / 10,548 mi / 9,166 nm
- **Estimated flight time**: 21h
- **Heading**: 135° (southeast)
- **Return heading**: 217° (southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → Saint Lucia
- **Intercontinental**: Oceania → North America
- **Time difference**: -13.5h (When it's 15:23 in Adelaide, it's 01:53 in Castries)
- **Elevation difference**: 2 ft (SLU is higher 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

### [George F. L. Charles Airport (SLU)](https://www.flightduration.online/airport/slu-castries-george-f-l-charles-airport/1ef266df-e048-6ec6-bfdb-06bb2780ed98)

- City: Castries, Saint Lucia
- ICAO: TLPC
- Timezone: America/St_Lucia
- Coordinates: 14.020000, -60.990000
- Elevation: 22 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 15:23 in Adelaide, it's 01:53 in Castries.
With a 13.5-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)
- [George F. L. Charles Airport (SLU)](https://www.flightduration.online/airport/slu-castries-george-f-l-charles-airport/1ef266df-e048-6ec6-bfdb-06bb2780ed98)
- [Flight duration calculator](/#calculator)