# Distance from Hat Yai (HDY) to Washington (IAD)

> 14,914 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 14,914 km / 9,267 mi / 8,053 nm
- **Estimated flight time**: 19h
- **Heading**: 358° (north)
- **Return heading**: 3° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -11h (When it's 10:19 in Hat Yai, it's 23:19 in Washington)
- **Elevation difference**: 222 ft (IAD is higher than HDY)

## Airports

### [Hat Yai International Airport (HDY)](https://www.flightduration.online/airport/hdy-hat-yai-hat-yai-international-airport/1ef266df-f5b3-6e28-88c1-06bb2780ed98)

- City: Hat Yai, Thailand
- ICAO: VTSS
- Timezone: Asia/Bangkok
- Coordinates: 6.930000, 100.390000
- Elevation: 90 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 10:19 in Hat Yai, it's 23:19 in Washington.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Hat Yai International Airport (HDY)](https://www.flightduration.online/airport/hdy-hat-yai-hat-yai-international-airport/1ef266df-f5b3-6e28-88c1-06bb2780ed98)
- [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)