# Distance from Washington (IAD) to Seletar (XSP)

> 15,530 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 15,530 km / 9,650 mi / 8,385 nm
- **Estimated flight time**: 19h
- **Heading**: 358° (north)
- **Return heading**: 2° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Singapore
- **Intercontinental**: North America → Asia
- **Time difference**: +12h (When it's 14:06 in Washington, it's 02:06 in Seletar)
- **Elevation difference**: 276 ft (XSP 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

### [Seletar Airport (XSP)](https://www.flightduration.online/airport/xsp-seletar-seletar-airport/1ef266e0-00c6-607c-b6cf-06bb2780ed98)

- City: Seletar, Singapore
- ICAO: WSSL
- Timezone: Asia/Singapore
- Coordinates: 1.420000, 103.870000
- Elevation: 36 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 14:06 in Washington, it's 02:06 in Seletar.
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)
- [Seletar Airport (XSP)](https://www.flightduration.online/airport/xsp-seletar-seletar-airport/1ef266e0-00c6-607c-b6cf-06bb2780ed98)
- [Flight duration calculator](/#calculator)