# Distance from Singapore (SIN) to Castries (SLU)

> 17,636 km · estimated flight time 22h · Ultra-long-haul route.

## Summary

- **Distance**: 17,636 km / 10,959 mi / 9,523 nm
- **Estimated flight time**: 22h
- **Heading**: 316° (northwest)
- **Return heading**: 45° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Singapore) → Saint Lucia
- **Intercontinental**: Asia → North America
- **Time difference**: -12h (When it's 07:53 in Singapore, it's 19:53 in Castries)
- **Elevation difference**: 0 ft (SLU is equal than SIN)

## Airports

### [Singapore Changi International Airport (SIN)](https://www.flightduration.online/airport/sin-singapore-singapore-changi-international-airport/1ef266e0-00ca-656e-b481-06bb2780ed98)

- City: Singapore, Singapore
- ICAO: WSSS
- Timezone: Asia/Singapore
- Coordinates: 1.350000, 103.990000
- Elevation: 22 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 07:53 in Singapore, it's 19:53 in Castries.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Singapore Changi International Airport (SIN)](https://www.flightduration.online/airport/sin-singapore-singapore-changi-international-airport/1ef266e0-00ca-656e-b481-06bb2780ed98)
- [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)