# Distance from Santiago (SCL) to Na Thon (Ko Samui Island) (USM)

> 17,204 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 17,204 km / 10,690 mi / 9,289 nm
- **Estimated flight time**: 21h
- **Heading**: 158° (south southeast)
- **Return heading**: 198° (south southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Chile) → Thailand
- **Intercontinental**: South America → Asia
- **Time difference**: +11h (When it's 17:39 in Santiago, it's 04:39 in Na Thon (Ko Samui Island))
- **Elevation difference**: 1,491 ft (USM is lower than SCL)

## Airports

### [Comodoro Arturo Merino Benitez International Airport (SCL)](https://www.flightduration.online/airport/scl-santiago-comodoro-arturo-merino-benitez-international-airport/1ef266df-992c-65ce-94d4-06bb2780ed98)

- City: Santiago, Chile
- ICAO: SCEL
- Timezone: America/Santiago
- Coordinates: -33.390000, -70.790000
- Elevation: 1,555 ft

### [Samui Airport (USM)](https://www.flightduration.online/airport/usm-na-thon-ko-samui-island-samui-airport/1ef266df-f5a3-6c12-8349-06bb2780ed98)

- City: Na Thon (Ko Samui Island), Thailand
- ICAO: VTSM
- Timezone: Asia/Bangkok
- Coordinates: 9.550000, 100.060000
- Elevation: 64 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 17:39 in Santiago, it's 04:39 in Na Thon (Ko Samui Island).
With a 11-hour time difference, expect significant jet lag.

## Related

- [Comodoro Arturo Merino Benitez International Airport (SCL)](https://www.flightduration.online/airport/scl-santiago-comodoro-arturo-merino-benitez-international-airport/1ef266df-992c-65ce-94d4-06bb2780ed98)
- [Samui Airport (USM)](https://www.flightduration.online/airport/usm-na-thon-ko-samui-island-samui-airport/1ef266df-f5a3-6c12-8349-06bb2780ed98)
- [Flight duration calculator](/#calculator)