# Distance from Washington (IAD) to Sayaboury (ZBY)

> 13,551 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,551 km / 8,420 mi / 7,317 nm
- **Estimated flight time**: 17h
- **Heading**: 1° (north)
- **Return heading**: 359° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Laos
- **Intercontinental**: North America → Asia
- **Time difference**: +11h (When it's 22:42 in Washington, it's 09:42 in Sayaboury)
- **Elevation difference**: 935 ft (ZBY is higher 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

### [Sayaboury Airport (ZBY)](https://www.flightduration.online/airport/zby-sayaboury-sayaboury-airport/1ef266df-f28e-6e00-acc9-06bb2780ed98)

- City: Sayaboury, Laos
- ICAO: VLSB
- Timezone: Asia/Vientiane
- Coordinates: 19.230000, 101.730000
- Elevation: 1,247 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 22:42 in Washington, it's 09:42 in Sayaboury.
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)
- [Sayaboury Airport (ZBY)](https://www.flightduration.online/airport/zby-sayaboury-sayaboury-airport/1ef266df-f28e-6e00-acc9-06bb2780ed98)
- [Flight duration calculator](/#calculator)