# Distance from Washington (IAD) to Long Semado (LSM)

> 15,035 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 15,035 km / 9,342 mi / 8,118 nm
- **Estimated flight time**: 19h
- **Heading**: 341° (north northwest)
- **Return heading**: 15° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Malaysia
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 03:05 in Washington, it's 15:05 in Long Semado)
- **Elevation difference**: 1,838 ft (LSM 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

### [Long Semado Airport (LSM)](https://www.flightduration.online/airport/lsm-long-semado-long-semado-airport/1ef266df-fb1e-61d8-aead-06bb2780ed98)

- City: Long Semado, Malaysia
- ICAO: WBGD
- Timezone: Asia/Kuching
- Coordinates: 4.220000, 115.600000
- Elevation: 2,150 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 03:05 in Washington, it's 15:05 in Long Semado.
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)
- [Long Semado Airport (LSM)](https://www.flightduration.online/airport/lsm-long-semado-long-semado-airport/1ef266df-fb1e-61d8-aead-06bb2780ed98)
- [Flight duration calculator](/#calculator)