# Distance from Seattle (SEA) to Son-La (SQH)

> 11,087 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 11,087 km / 6,889 mi / 5,986 nm
- **Estimated flight time**: 14h
- **Heading**: 317° (northwest)
- **Return heading**: 30° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Vietnam
- **Intercontinental**: North America → Asia
- **Time difference**: +14h (When it's 07:21 in Seattle, it's 21:21 in Son-La)
- **Elevation difference**: 1,701 ft (SQH is higher than SEA)

## Airports

### [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)

- City: Seattle, United States
- ICAO: KSEA
- Timezone: America/Los_Angeles
- Coordinates: 47.450000, -122.310000
- Elevation: 432 ft

### [Na-San Airport (SQH)](https://www.flightduration.online/airport/sqh-son-la-na-san-airport/1ef266df-f636-61fc-919d-06bb2780ed98)

- City: Son-La, Vietnam
- ICAO: VVNS
- Timezone: Asia/Ho_Chi_Minh
- Coordinates: 21.220000, 104.030000
- Elevation: 2,133 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 07:21 in Seattle, it's 21:21 in Son-La.
With a 14-hour time difference, expect significant jet lag.

## Related

- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Na-San Airport (SQH)](https://www.flightduration.online/airport/sqh-son-la-na-san-airport/1ef266df-f636-61fc-919d-06bb2780ed98)
- [Flight duration calculator](/#calculator)