# Distance from Dayong (DYG) to Washington (IAD)

> 12,409 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,409 km / 7,711 mi / 6,700 nm
- **Estimated flight time**: 16h
- **Heading**: 7° (north)
- **Return heading**: 353° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (China) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -12h (When it's 11:11 in Dayong, it's 23:11 in Washington)
- **Elevation difference**: 380 ft (IAD is lower than DYG)

## Airports

### [Dayong Airport (DYG)](https://flightduration.online/airport/dyg-dayong-dayong-airport/1ef266e0-1e6e-60b6-9939-06bb2780ed98)

- City: Dayong, China
- ICAO: ZGDY
- Timezone: Asia/Shanghai
- Coordinates: 29.100000, 110.440000
- Elevation: 692 ft

### [Washington Dulles International Airport (IAD)](https://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 11:11 in Dayong, it's 23:11 in Washington.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Dayong Airport (DYG)](https://flightduration.online/airport/dyg-dayong-dayong-airport/1ef266e0-1e6e-60b6-9939-06bb2780ed98)
- [Washington Dulles International Airport (IAD)](https://flightduration.online/airport/iad-washington-washington-dulles-international-airport/1ef266df-22cc-64e2-b8c0-06bb2780ed98)
- [Flight duration calculator](/#calculator)