# Distance from Houston (IAH) to Koumac (KOC)

> 12,095 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 12,095 km / 7,515 mi / 6,531 nm
- **Estimated flight time**: 15h
- **Heading**: 257° (west southwest)
- **Return heading**: 64° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → New Caledonia
- **Intercontinental**: North America → Oceania
- **Time difference**: +16h (When it's 18:46 in Houston, it's 10:46 in Koumac)
- **Elevation difference**: 54 ft (KOC is lower than IAH)

## Airports

### [George Bush Intcntl/Houston Airport (IAH)](https://www.flightduration.online/airport/iah-houston-george-bush-intcntlhouston-airport/1ef266df-22d4-6822-bae6-06bb2780ed98)

- City: Houston, United States
- ICAO: KIAH
- Timezone: America/Chicago
- Coordinates: 29.980000, -95.340000
- Elevation: 96 ft

### [Koumac Airport (KOC)](https://www.flightduration.online/airport/koc-koumac-koumac-airport/1ef266df-750c-66f8-93b6-06bb2780ed98)

- City: Koumac, New Caledonia
- ICAO: NWWK
- Timezone: Pacific/Noumea
- Coordinates: -20.550000, 164.260000
- Elevation: 42 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 18:46 in Houston, it's 10:46 in Koumac.
With a 16-hour time difference, expect significant jet lag.

## Related

- [George Bush Intcntl/Houston Airport (IAH)](https://www.flightduration.online/airport/iah-houston-george-bush-intcntlhouston-airport/1ef266df-22d4-6822-bae6-06bb2780ed98)
- [Koumac Airport (KOC)](https://www.flightduration.online/airport/koc-koumac-koumac-airport/1ef266df-750c-66f8-93b6-06bb2780ed98)
- [Flight duration calculator](/#calculator)