# Distance from St Louis (STL) to Sokcho / Gangneung (YNY)

> 10,589 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,589 km / 6,579 mi / 5,717 nm
- **Estimated flight time**: 13h
- **Heading**: 330° (north northwest)
- **Return heading**: 30° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → South Korea
- **Intercontinental**: North America → Asia
- **Time difference**: +14h (When it's 03:42 in St Louis, it's 17:42 in Sokcho / Gangneung)
- **Elevation difference**: 376 ft (YNY is lower than STL)

## Airports

### [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)

- City: St Louis, United States
- ICAO: KSTL
- Timezone: America/Chicago
- Coordinates: 38.750000, -90.370000
- Elevation: 617 ft

### [Yangyang International Airport (YNY)](https://www.flightduration.online/airport/yny-sokcho-gangneung-yangyang-international-airport/1ef266df-8dc6-6cac-b69b-06bb2780ed98)

- City: Sokcho / Gangneung, South Korea
- ICAO: RKNY
- Timezone: Asia/Seoul
- Coordinates: 38.060000, 128.670000
- Elevation: 241 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 03:42 in St Louis, it's 17:42 in Sokcho / Gangneung.
With a 14-hour time difference, expect significant jet lag.

## Related

- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Yangyang International Airport (YNY)](https://www.flightduration.online/airport/yny-sokcho-gangneung-yangyang-international-airport/1ef266df-8dc6-6cac-b69b-06bb2780ed98)
- [Flight duration calculator](/#calculator)