# Distance from Washington (IAD) to Phnom Penh (PNH)

> 14,400 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,400 km / 8,948 mi / 7,775 nm
- **Estimated flight time**: 18h
- **Heading**: 357° (north)
- **Return heading**: 2° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Cambodia
- **Intercontinental**: North America → Asia
- **Time difference**: +11h (When it's 19:31 in Washington, it's 06:31 in Phnom Penh)
- **Elevation difference**: 272 ft (PNH is lower than IAD)

## Airports

### [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)

- City: Washington, United States
- ICAO: KIAD
- Timezone: America/New_York
- Coordinates: 38.900000, -77.500000
- Elevation: 312 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 19:31 in Washington, it's 06:31 in Phnom Penh.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)
- [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)