# Distance from Buenos Aires (AEP) to Ban Huoeisay Airport (OUI)

> 17,401 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 17,401 km / 10,813 mi / 9,396 nm
- **Estimated flight time**: 21h
- **Heading**: 122° (east southeast)
- **Return heading**: 228° (southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Argentina) → Laos
- **Intercontinental**: South America → Asia
- **Time difference**: +10h (When it's 19:22 in Buenos Aires, it's 05:22 in Ban Huoeisay Airport)
- **Elevation difference**: 1,362 ft (OUI is higher than AEP)

## Airports

### [Jorge Newbery Airpark (AEP)](https://www.flightduration.online/airport/aep-buenos-aires-jorge-newbery-airpark/1ef266df-90fd-6222-98d7-06bb2780ed98)

- City: Buenos Aires, Argentina
- ICAO: SABE
- Timezone: America/Argentina/Buenos_Aires
- Coordinates: -34.560000, -58.420000
- Elevation: 18 ft

### [Ban Huoeisay Airport (OUI)](https://www.flightduration.online/airport/oui-ban-huoeisay-airport/1ef266df-f277-6980-89e5-06bb2780ed98)

- City: Ban Huoeisay Airport, Laos
- ICAO: VLHS
- Timezone: Asia/Vientiane
- Coordinates: 20.260000, 100.440000
- Elevation: 1,380 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 19:22 in Buenos Aires, it's 05:22 in Ban Huoeisay Airport.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Jorge Newbery Airpark (AEP)](https://www.flightduration.online/airport/aep-buenos-aires-jorge-newbery-airpark/1ef266df-90fd-6222-98d7-06bb2780ed98)
- [Ban Huoeisay Airport (OUI)](https://www.flightduration.online/airport/oui-ban-huoeisay-airport/1ef266df-f277-6980-89e5-06bb2780ed98)
- [Flight duration calculator](/#calculator)