# Distance from Kampong Chhnang Airport (KZC) to Seattle (SEA)

> 11,918 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,918 km / 7,405 mi / 6,435 nm
- **Estimated flight time**: 15h
- **Heading**: 31° (north northeast)
- **Return heading**: 312° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Cambodia) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -14h (When it's 09:22 in Kampong Chhnang Airport, it's 19:22 in Seattle)
- **Elevation difference**: 376 ft (SEA is higher than KZC)

## Airports

### [Kampong Chhnang Airport (KZC)](https://www.flightduration.online/airport/kzc-kampong-chhnang-airport/1ef266df-ef9b-6874-9987-06bb2780ed98)

- City: Kampong Chhnang Airport, Cambodia
- ICAO: VDKH
- Timezone: Asia/Phnom_Penh
- Coordinates: 12.260000, 104.560000
- Elevation: 56 ft

### [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)

- City: Seattle, United States
- ICAO: KSEA
- Timezone: America/Los_Angeles
- Coordinates: 47.450000, -122.310000
- Elevation: 432 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 09:22 in Kampong Chhnang Airport, it's 19:22 in Seattle.
With a 14-hour time difference, expect significant jet lag.

## Related

- [Kampong Chhnang Airport (KZC)](https://www.flightduration.online/airport/kzc-kampong-chhnang-airport/1ef266df-ef9b-6874-9987-06bb2780ed98)
- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Flight duration calculator](/#calculator)