# Distance from Bangkok (BKK) to Castries (SLU)

> 16,337 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 16,337 km / 10,151 mi / 8,821 nm
- **Estimated flight time**: 20h
- **Heading**: 326° (northwest)
- **Return heading**: 34° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → Saint Lucia
- **Intercontinental**: Asia → North America
- **Time difference**: -11h (When it's 21:15 in Bangkok, it's 10:15 in Castries)
- **Elevation difference**: 17 ft (SLU is higher than BKK)

## Airports

### [Suvarnabhumi Airport (BKK)](https://www.flightduration.online/airport/bkk-bangkok-suvarnabhumi-airport/1ef266df-f511-6042-a32f-06bb2780ed98)

- City: Bangkok, Thailand
- ICAO: VTBS
- Timezone: Asia/Bangkok
- Coordinates: 13.680000, 100.750000
- Elevation: 5 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 21:15 in Bangkok, it's 10:15 in Castries.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Suvarnabhumi Airport (BKK)](https://www.flightduration.online/airport/bkk-bangkok-suvarnabhumi-airport/1ef266df-f511-6042-a32f-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)