# Distance from Semonkong (SOK) to St Louis (STL)

> 14,379 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,379 km / 8,934 mi / 7,764 nm
- **Estimated flight time**: 18h
- **Heading**: 298° (west northwest)
- **Return heading**: 100° (east)
- **Classification**: Ultra-long-haul
- **Type**: International (Lesotho) → United States
- **Intercontinental**: Africa → North America
- **Time difference**: -7h (When it's 19:54 in Semonkong, it's 12:54 in St Louis)
- **Elevation difference**: 6,583 ft (STL is lower than SOK)

## Airports

### [Semonkong Airport (SOK)](https://www.flightduration.online/airport/sok-semonkong-semonkong-airport/1ef266de-e0a6-68c4-a1ee-06bb2780ed98)

- City: Semonkong, Lesotho
- ICAO: FXSM
- Timezone: Africa/Maseru
- Coordinates: -29.840000, 28.060000
- Elevation: 7,200 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 19:54 in Semonkong, it's 12:54 in St Louis.
With a 7-hour time difference, expect significant jet lag.

## Related

- [Semonkong Airport (SOK)](https://www.flightduration.online/airport/sok-semonkong-semonkong-airport/1ef266de-e0a6-68c4-a1ee-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)