# Distance from Washington (IAD) to Khok Kathiam Airport (KKM)

> 14,033 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,033 km / 8,720 mi / 7,577 nm
- **Estimated flight time**: 18h
- **Heading**: 2° (north)
- **Return heading**: 358° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Thailand
- **Intercontinental**: North America → Asia
- **Time difference**: +11h (When it's 07:16 in Washington, it's 18:16 in Khok Kathiam Airport)
- **Elevation difference**: 189 ft (KKM 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

### [Khok Kathiam Airport (KKM)](https://www.flightduration.online/airport/kkm-khok-kathiam-airport/1ef266df-f500-62d8-8a0a-06bb2780ed98)

- City: Khok Kathiam Airport, Thailand
- ICAO: VTBL
- Timezone: Asia/Bangkok
- Coordinates: 14.870000, 100.660000
- Elevation: 123 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 07:16 in Washington, it's 18:16 in Khok Kathiam Airport.
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)
- [Khok Kathiam Airport (KKM)](https://www.flightduration.online/airport/kkm-khok-kathiam-airport/1ef266df-f500-62d8-8a0a-06bb2780ed98)
- [Flight duration calculator](/#calculator)