# Distance from Seoul (ICN) to Williston (XWA)

> 9,269 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,269 km / 5,759 mi / 5,005 nm
- **Estimated flight time**: 12h
- **Heading**: 31° (north northeast)
- **Return heading**: 322° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -14h (When it's 03:17 in Seoul, it's 13:17 in Williston)
- **Elevation difference**: 2,333 ft (XWA is higher than ICN)

## Airports

### [Incheon International Airport (ICN)](https://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

### [Williston Basin International Airport (XWA)](https://flightduration.online/airport/xwa-williston-williston-basin-international-airport/1ef266df-40d8-6bfc-91d9-06bb2780ed98)

- City: Williston, United States
- ICAO: KXWA
- Timezone: America/Chicago
- Coordinates: 48.260000, -103.750000
- Elevation: 2,356 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 03:17 in Seoul, it's 13:17 in Williston.
With a 14-hour time difference, expect significant jet lag.

## Related

- [Incheon International Airport (ICN)](https://flightduration.online/airport/icn-seoul-incheon-international-airport/1ef266df-8e0e-6aac-85a0-06bb2780ed98)
- [Williston Basin International Airport (XWA)](https://flightduration.online/airport/xwa-williston-williston-basin-international-airport/1ef266df-40d8-6bfc-91d9-06bb2780ed98)
- [Flight duration calculator](/#calculator)