# Distance from St Louis (STL) to Con Ong (VCS)

> 14,450 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,450 km / 8,979 mi / 7,802 nm
- **Estimated flight time**: 18h
- **Heading**: 338° (north northwest)
- **Return heading**: 17° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Vietnam
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 02:45 in St Louis, it's 14:45 in Con Ong)
- **Elevation difference**: 597 ft (VCS 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

### [Co Ong Airport (VCS)](https://www.flightduration.online/airport/vcs-con-ong-co-ong-airport/1ef266df-f610-6bdc-be01-06bb2780ed98)

- City: Con Ong, Vietnam
- ICAO: VVCS
- Timezone: Asia/Ho_Chi_Minh
- Coordinates: 8.730000, 106.630000
- Elevation: 20 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 02:45 in St Louis, it's 14:45 in Con Ong.
With a 12-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)
- [Co Ong Airport (VCS)](https://www.flightduration.online/airport/vcs-con-ong-co-ong-airport/1ef266df-f610-6bdc-be01-06bb2780ed98)
- [Flight duration calculator](/#calculator)