# Distance from Washington (IAD) to Roi Et Airport (ROI)

> 13,896 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,896 km / 8,634 mi / 7,503 nm
- **Estimated flight time**: 17h
- **Heading**: 359° (north)
- **Return heading**: 1° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Thailand
- **Intercontinental**: North America → Asia
- **Time difference**: +11h (When it's 02:28 in Washington, it's 13:28 in Roi Et Airport)
- **Elevation difference**: 139 ft (ROI is higher 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

### [Roi Et Airport (ROI)](https://www.flightduration.online/airport/roi-roi-et-airport/1ef266df-f5e7-6d68-8abb-06bb2780ed98)

- City: Roi Et Airport, Thailand
- ICAO: VTUV
- Timezone: Asia/Bangkok
- Coordinates: 16.120000, 103.770000
- Elevation: 451 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 02:28 in Washington, it's 13:28 in Roi Et 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)
- [Roi Et Airport (ROI)](https://www.flightduration.online/airport/roi-roi-et-airport/1ef266df-f5e7-6d68-8abb-06bb2780ed98)
- [Flight duration calculator](/#calculator)