# Distance from Seoul (ICN) to Na Thon (Ko Samui Island) (USM)

> 4,078 km · estimated flight time 6h · Long-haul route.

## Summary

- **Distance**: 4,078 km / 2,534 mi / 2,202 nm
- **Estimated flight time**: 6h
- **Heading**: 227° (southwest)
- **Return heading**: 36° (northeast)
- **Classification**: Long-haul
- **Type**: International (South Korea) → Thailand
- **Time difference**: -2h (When it's 04:06 in Seoul, it's 02:06 in Na Thon (Ko Samui Island))
- **Elevation difference**: 41 ft (USM is higher than ICN)

## Airports

### [Incheon International Airport (ICN)](https://www.flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)

- City: Seoul, South Korea
- ICAO: RKSI
- Timezone: Asia/Seoul
- Coordinates: 37.470000, 126.450000
- Elevation: 23 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 a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 04:06 in Seoul, it's 02:06 in Na Thon (Ko Samui Island).

## Related

- [Incheon International Airport (ICN)](https://www.flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)
- [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)