# Distance from Houailou (HLU) to Sofia (SOF)

> 15,781 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 15,781 km / 9,806 mi / 8,521 nm
- **Estimated flight time**: 20h
- **Heading**: 313° (northwest)
- **Return heading**: 68° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (New Caledonia) → Bulgaria
- **Intercontinental**: Oceania → Europe
- **Time difference**: -8h (When it's 15:03 in Houailou, it's 07:03 in Sofia)
- **Elevation difference**: 1,732 ft (SOF is higher than HLU)

## Airports

### [Nesson Airport (HLU)](https://www.flightduration.online/airport/hlu-houailou-nesson-airport/1ef266df-7508-6c9c-9973-06bb2780ed98)

- City: Houailou, New Caledonia
- ICAO: NWWH
- Timezone: Pacific/Noumea
- Coordinates: -21.260000, 165.620000
- Elevation: 10 ft

### [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)

- City: Sofia, Bulgaria
- ICAO: LBSF
- Timezone: Europe/Sofia
- Coordinates: 42.700000, 23.410000
- Elevation: 1,742 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 15:03 in Houailou, it's 07:03 in Sofia.
With a 8-hour time difference, expect significant jet lag.

## Related

- [Nesson Airport (HLU)](https://www.flightduration.online/airport/hlu-houailou-nesson-airport/1ef266df-7508-6c9c-9973-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)