# Distance from Seattle (BFI) to Singapore (SIN)

> 12,975 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,975 km / 8,062 mi / 7,006 nm
- **Estimated flight time**: 16h
- **Heading**: 306° (northwest)
- **Return heading**: 33° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Singapore
- **Intercontinental**: North America → Asia
- **Time difference**: +15h (When it's 23:28 in Seattle, it's 14:28 in Singapore)
- **Elevation difference**: 0 ft (SIN is higher than BFI)

## Airports

### [Boeing Field/King County International Airport (BFI)](https://www.flightduration.online/airport/bfi-seattle-boeing-fieldking-county-international-airport/1ef266df-104a-6602-8542-06bb2780ed98)

- City: Seattle, United States
- ICAO: KBFI
- Timezone: America/Los_Angeles
- Coordinates: 47.530000, -122.300000
- Elevation: 22 ft

### [Singapore Changi International Airport (SIN)](https://www.flightduration.online/airport/sin-singapore-singapore-changi-international-airport/1ef266e0-00ca-656e-b481-06bb2780ed98)

- City: Singapore, Singapore
- ICAO: WSSS
- Timezone: Asia/Singapore
- Coordinates: 1.350000, 103.990000
- Elevation: 22 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 23:28 in Seattle, it's 14:28 in Singapore.
With a 15-hour time difference, expect significant jet lag.

## Related

- [Boeing Field/King County International Airport (BFI)](https://www.flightduration.online/airport/bfi-seattle-boeing-fieldking-county-international-airport/1ef266df-104a-6602-8542-06bb2780ed98)
- [Singapore Changi International Airport (SIN)](https://www.flightduration.online/airport/sin-singapore-singapore-changi-international-airport/1ef266e0-00ca-656e-b481-06bb2780ed98)
- [Flight duration calculator](/#calculator)