# Distance from Washington (IAD) to Simao (SYM)

> 13,154 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 13,154 km / 8,173 mi / 7,102 nm
- **Estimated flight time**: 16h
- **Heading**: 2° (north)
- **Return heading**: 359° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 01:46 in Washington, it's 13:46 in Simao)
- **Elevation difference**: 312 ft (SYM 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

### [Simao Airport (SYM)](https://www.flightduration.online/airport/sym-simao-simao-airport/1ef266e0-1fbd-65b6-a651-06bb2780ed98)

- City: Simao, China
- ICAO: ZPSM
- Timezone: Asia/Shanghai
- Coordinates: 22.790000, 100.960000
- Elevation: 0 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 01:46 in Washington, it's 13:46 in Simao.
With a 12-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)
- [Simao Airport (SYM)](https://www.flightduration.online/airport/sym-simao-simao-airport/1ef266e0-1fbd-65b6-a651-06bb2780ed98)
- [Flight duration calculator](/#calculator)