# Distance from Attopeu (AOU) to Washington (IAD)

> 14,026 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,026 km / 8,715 mi / 7,573 nm
- **Estimated flight time**: 18h
- **Heading**: 4° (north)
- **Return heading**: 355° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Laos) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -11h (When it's 18:35 in Attopeu, it's 07:35 in Washington)
- **Elevation difference**: 32 ft (IAD is lower than AOU)

## Airports

### [Attopeu Airport (AOU)](https://www.flightduration.online/airport/aou-attopeu-attopeu-airport/1ef266df-f273-65c4-a0a9-06bb2780ed98)

- City: Attopeu, Laos
- ICAO: VLAP
- Timezone: Asia/Vientiane
- Coordinates: 14.810000, 106.820000
- Elevation: 344 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 18:35 in Attopeu, it's 07:35 in Washington.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Attopeu Airport (AOU)](https://www.flightduration.online/airport/aou-attopeu-attopeu-airport/1ef266df-f273-65c4-a0a9-06bb2780ed98)
- [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)