# Distance from Kharkhorin Airport (KHR) to St Louis (STL)

> 10,363 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,363 km / 6,439 mi / 5,596 nm
- **Estimated flight time**: 13h
- **Heading**: 10° (north)
- **Return heading**: 351° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Mongolia) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -13h (When it's 10:41 in Kharkhorin Airport, it's 21:41 in St Louis)
- **Elevation difference**: 4,142 ft (STL is lower than KHR)

## Airports

### [Kharkhorin Airport (KHR)](https://www.flightduration.online/airport/khr-kharkhorin-airport/1ef266e0-1f7a-6e3c-b354-06bb2780ed98)

- City: Kharkhorin Airport, Mongolia
- ICAO: ZMHH
- Timezone: Asia/Ulaanbaatar
- Coordinates: 47.250000, 102.830000
- Elevation: 4,759 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 10:41 in Kharkhorin Airport, it's 21:41 in St Louis.
With a 13-hour time difference, expect significant jet lag.

## Related

- [Kharkhorin Airport (KHR)](https://www.flightduration.online/airport/khr-kharkhorin-airport/1ef266e0-1f7a-6e3c-b354-06bb2780ed98)
- [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)