# Distance from Seattle (BFI) to Hanoi (HAN)

> 10,988 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 10,988 km / 6,828 mi / 5,933 nm
- **Estimated flight time**: 14h
- **Heading**: 315° (northwest)
- **Return heading**: 31° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Vietnam
- **Intercontinental**: North America → Asia
- **Time difference**: +14h (When it's 23:45 in Seattle, it's 13:45 in Hanoi)
- **Elevation difference**: 17 ft (HAN 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

### [Noi Bai International Airport (HAN)](https://www.flightduration.online/airport/han-hanoi-noi-bai-international-airport/1ef266df-f632-63cc-97d4-06bb2780ed98)

- City: Hanoi, Vietnam
- ICAO: VVNB
- Timezone: Asia/Ho_Chi_Minh
- Coordinates: 21.220000, 105.810000
- Elevation: 39 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 23:45 in Seattle, it's 13:45 in Hanoi.
With a 14-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)
- [Noi Bai International Airport (HAN)](https://www.flightduration.online/airport/han-hanoi-noi-bai-international-airport/1ef266df-f632-63cc-97d4-06bb2780ed98)
- [Flight duration calculator](/#calculator)