# Distance from Chehalis (CLS) to Seoul (ICN)

> 8,389 km · estimated flight time 11h · Long-haul route.

## Summary

- **Distance**: 8,389 km / 5,213 mi / 4,530 nm
- **Estimated flight time**: 11h
- **Heading**: 310° (northwest)
- **Return heading**: 42° (northeast)
- **Classification**: Long-haul
- **Type**: International (United States) → South Korea
- **Intercontinental**: North America → Asia
- **Time difference**: +16h (When it's 03:35 in Chehalis, it's 19:35 in Seoul)
- **Elevation difference**: 154 ft (ICN is lower than CLS)

## Airports

### [Chehalis-Centralia Airport (CLS)](https://www.flightduration.online/airport/cls-chehalis-chehalis-centralia-airport/1ef266df-1444-633e-a180-06bb2780ed98)

- City: Chehalis, United States
- ICAO: KCLS
- Timezone: America/Los_Angeles
- Coordinates: 46.680000, -122.980000
- Elevation: 177 ft

### [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

## 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 03:35 in Chehalis, it's 19:35 in Seoul.
With a 16-hour time difference, expect significant jet lag.

## Related

- [Chehalis-Centralia Airport (CLS)](https://www.flightduration.online/airport/cls-chehalis-chehalis-centralia-airport/1ef266df-1444-633e-a180-06bb2780ed98)
- [Incheon International Airport (ICN)](https://www.flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)
- [Flight duration calculator](/#calculator)