# Distance from Seoul (GMP) to St Louis (STL)

> 10,717 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 10,717 km / 6,659 mi / 5,787 nm
- **Estimated flight time**: 14h
- **Heading**: 28° (north northeast)
- **Return heading**: 331° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (South Korea) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -14h (When it's 22:58 in Seoul, it's 08:58 in St Louis)
- **Elevation difference**: 559 ft (STL is higher than GMP)

## Airports

### [Gimpo International Airport (GMP)](https://www.flightduration.online/airport/gmp-seoul-gimpo-international-airport/1ef266df-8e1d-67f0-9b6a-06bb2780ed98)

- City: Seoul, South Korea
- ICAO: RKSS
- Timezone: Asia/Seoul
- Coordinates: 37.560000, 126.790000
- Elevation: 58 ft

### [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

## 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 22:58 in Seoul, it's 08:58 in St Louis.
With a 14-hour time difference, expect significant jet lag.

## Related

- [Gimpo International Airport (GMP)](https://www.flightduration.online/airport/gmp-seoul-gimpo-international-airport/1ef266df-8e1d-67f0-9b6a-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)