# Distance from Seoul (ICN) to Saint Helier (JER)

> 9,134 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,134 km / 5,675 mi / 4,932 nm
- **Estimated flight time**: 12h
- **Heading**: 329° (north northwest)
- **Return heading**: 39° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → JE
- **Time difference**: -8h (When it's 20:15 in Seoul, it's 12:15 in Saint Helier)
- **Elevation difference**: 254 ft (JER 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

### [Jersey Airport (JER)](https://www.flightduration.online/airport/jer-saint-helier-jersey-airport/1ef266de-c41e-6d5a-94a2-06bb2780ed98)

- City: Saint Helier, JE
- ICAO: EGJJ
- Timezone: Europe/Jersey
- Coordinates: 49.210000, -2.200000
- Elevation: 277 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 20:15 in Seoul, it's 12:15 in Saint Helier.
With a 8-hour time difference, expect significant jet lag.

## Related

- [Incheon International Airport (ICN)](https://www.flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)
- [Jersey Airport (JER)](https://www.flightduration.online/airport/jer-saint-helier-jersey-airport/1ef266de-c41e-6d5a-94a2-06bb2780ed98)
- [Flight duration calculator](/#calculator)