# Distance from Seoul (ICN) to St. Lewis (YFX)

> 10,023 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,023 km / 6,228 mi / 5,412 nm
- **Estimated flight time**: 13h
- **Heading**: 1° (north)
- **Return heading**: 358° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → Canada
- **Intercontinental**: Asia → North America
- **Time difference**: -11.5h (When it's 12:16 in Seoul, it's 00:46 in St. Lewis)
- **Elevation difference**: 51 ft (YFX 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

### [St. Lewis (Fox Harbour) Airport (YFX)](https://www.flightduration.online/airport/yfx-st-lewis-st-lewis-fox-harbour-airport/1ef266de-a153-6c44-83c4-06bb2780ed98)

- City: St. Lewis, Canada
- ICAO: CCK4
- Timezone: America/St_Johns
- Coordinates: 52.370000, -55.670000
- Elevation: 74 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 12:16 in Seoul, it's 00:46 in St. Lewis.
With a 11.5-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)
- [St. Lewis (Fox Harbour) Airport (YFX)](https://www.flightduration.online/airport/yfx-st-lewis-st-lewis-fox-harbour-airport/1ef266de-a153-6c44-83c4-06bb2780ed98)
- [Flight duration calculator](/#calculator)