# Distance from Changzhou (CZX) to Washington (IAD)

> 11,940 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,940 km / 7,419 mi / 6,447 nm
- **Estimated flight time**: 15h
- **Heading**: 14° (north northeast)
- **Return heading**: 345° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (China) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12h (When it's 02:38 in Changzhou, it's 14:38 in Washington)
- **Elevation difference**: 312 ft (IAD is higher than CZX)

## Airports

### [Changzhou Airport (CZX)](https://www.flightduration.online/airport/czx-changzhou-changzhou-airport/1ef266e0-1fd2-6eac-8d6b-06bb2780ed98)

- City: Changzhou, China
- ICAO: ZSCG
- Timezone: Asia/Shanghai
- Coordinates: 31.920000, 119.780000
- Elevation: 0 ft

### [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

## 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 02:38 in Changzhou, it's 14:38 in Washington.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Changzhou Airport (CZX)](https://www.flightduration.online/airport/czx-changzhou-changzhou-airport/1ef266e0-1fd2-6eac-8d6b-06bb2780ed98)
- [Washington Dulles International Airport (IAD)](https://www.flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)
- [Flight duration calculator](/#calculator)