# Distance from Hua Hin (HHQ) to Washington (IAD)

> 14,278 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,278 km / 8,872 mi / 7,709 nm
- **Estimated flight time**: 18h
- **Heading**: 357° (north)
- **Return heading**: 3° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -11h (When it's 12:19 in Hua Hin, it's 01:19 in Washington)
- **Elevation difference**: 250 ft (IAD is higher than HHQ)

## Airports

### [Hua Hin Airport (HHQ)](https://www.flightduration.online/airport/hhq-hua-hin-hua-hin-airport/1ef266df-f554-6522-b2e3-06bb2780ed98)

- City: Hua Hin, Thailand
- ICAO: VTPH
- Timezone: Asia/Bangkok
- Coordinates: 12.640000, 99.950000
- Elevation: 62 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 12:19 in Hua Hin, it's 01:19 in Washington.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Hua Hin Airport (HHQ)](https://www.flightduration.online/airport/hhq-hua-hin-hua-hin-airport/1ef266df-f554-6522-b2e3-06bb2780ed98)
- [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)