# Distance from Washington (IAD) to Thanh Hóa (THD)

> 13,470 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,470 km / 8,370 mi / 7,273 nm
- **Estimated flight time**: 17h
- **Heading**: 357° (north)
- **Return heading**: 3° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Vietnam
- **Intercontinental**: North America → Asia
- **Time difference**: +11h (When it's 20:55 in Washington, it's 07:55 in Thanh Hóa)
- **Elevation difference**: 253 ft (THD 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

### [Thọ Xuân Airport (THD)](https://www.flightduration.online/airport/thd-thanh-hoa-tho-xuan-airport/1ef266df-f665-689e-be45-06bb2780ed98)

- City: Thanh Hóa, Vietnam
- ICAO: VVTX
- Timezone: Asia/Ho_Chi_Minh
- Coordinates: 19.900000, 105.470000
- Elevation: 59 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 20:55 in Washington, it's 07:55 in Thanh Hóa.
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)
- [Thọ Xuân Airport (THD)](https://www.flightduration.online/airport/thd-thanh-hoa-tho-xuan-airport/1ef266df-f665-689e-be45-06bb2780ed98)
- [Flight duration calculator](/#calculator)