# Distance from Houston (IAH) to Phnom Penh (PNH)

> 14,917 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 14,917 km / 9,269 mi / 8,054 nm
- **Estimated flight time**: 19h
- **Heading**: 332° (north northwest)
- **Return heading**: 25° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Cambodia
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 03:45 in Houston, it's 15:45 in Phnom Penh)
- **Elevation difference**: 56 ft (PNH 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

### [Phnom Penh International Airport (PNH)](https://www.flightduration.online/airport/pnh-phnom-penh-phnom-penh-international-airport/1ef266df-efac-6192-b396-06bb2780ed98)

- City: Phnom Penh, Cambodia
- ICAO: VDPP
- Timezone: Asia/Phnom_Penh
- Coordinates: 11.550000, 104.840000
- Elevation: 40 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 03:45 in Houston, it's 15:45 in Phnom Penh.
With a 12-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)
- [Phnom Penh International Airport (PNH)](https://www.flightduration.online/airport/pnh-phnom-penh-phnom-penh-international-airport/1ef266df-efac-6192-b396-06bb2780ed98)
- [Flight duration calculator](/#calculator)