# Distance from Kampong Chhnang Airport (KZC) to St Louis (STL)

> 14,135 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,135 km / 8,783 mi / 7,632 nm
- **Estimated flight time**: 18h
- **Heading**: 15° (north northeast)
- **Return heading**: 342° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Cambodia) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12h (When it's 05:26 in Kampong Chhnang Airport, it's 17:26 in St Louis)
- **Elevation difference**: 561 ft (STL is higher than KZC)

## Airports

### [Kampong Chhnang Airport (KZC)](https://www.flightduration.online/airport/kzc-kampong-chhnang-airport/1ef266df-ef9b-6874-9987-06bb2780ed98)

- City: Kampong Chhnang Airport, Cambodia
- ICAO: VDKH
- Timezone: Asia/Phnom_Penh
- Coordinates: 12.260000, 104.560000
- Elevation: 56 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 05:26 in Kampong Chhnang Airport, it's 17:26 in St Louis.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Kampong Chhnang Airport (KZC)](https://www.flightduration.online/airport/kzc-kampong-chhnang-airport/1ef266df-ef9b-6874-9987-06bb2780ed98)
- [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)