# Distance from Bangkok (DMK) to Washington (IAD)

> 14,140 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,140 km / 8,786 mi / 7,635 nm
- **Estimated flight time**: 18h
- **Heading**: 358° (north)
- **Return heading**: 2° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Thailand) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -11h (When it's 04:13 in Bangkok, it's 17:13 in Washington)
- **Elevation difference**: 303 ft (IAD is higher than DMK)

## Airports

### [Don Mueang International Airport (DMK)](https://www.flightduration.online/airport/dmk-bangkok-don-mueang-international-airport/1ef266df-f4f3-6f60-870e-06bb2780ed98)

- City: Bangkok, Thailand
- ICAO: VTBD
- Timezone: Asia/Bangkok
- Coordinates: 13.910000, 100.610000
- Elevation: 9 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 04:13 in Bangkok, it's 17:13 in Washington.
With a 11-hour time difference, expect significant jet lag.

## Related

- [Don Mueang International Airport (DMK)](https://www.flightduration.online/airport/dmk-bangkok-don-mueang-international-airport/1ef266df-f4f3-6f60-870e-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)