# Distance from Washington (IAD) to Ulan Bator (ULN)

> 10,361 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,361 km / 6,438 mi / 5,594 nm
- **Estimated flight time**: 13h
- **Heading**: 357° (north)
- **Return heading**: 3° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Mongolia
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 21:33 in Washington, it's 09:33 in Ulan Bator)
- **Elevation difference**: 4,052 ft (ULN 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

### [Buyant-Ukhaa International Airport (ULN)](https://www.flightduration.online/airport/uln-ulan-bator-buyant-ukhaa-international-airport/1ef266e0-1f91-688a-a773-06bb2780ed98)

- City: Ulan Bator, Mongolia
- ICAO: ZMUB
- Timezone: Asia/Ulaanbaatar
- Coordinates: 47.840000, 106.770000
- Elevation: 4,364 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 21:33 in Washington, it's 09:33 in Ulan Bator.
With a 12-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)
- [Buyant-Ukhaa International Airport (ULN)](https://www.flightduration.online/airport/uln-ulan-bator-buyant-ukhaa-international-airport/1ef266e0-1f91-688a-a773-06bb2780ed98)
- [Flight duration calculator](/#calculator)