# Distance from Huai'an (HIA) to Seattle (SEA)

> 9,107 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,107 km / 5,659 mi / 4,917 nm
- **Estimated flight time**: 12h
- **Heading**: 37° (northeast)
- **Return heading**: 313° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (China) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -15h (When it's 12:33 in Huai'an, it's 21:33 in Seattle)
- **Elevation difference**: 404 ft (SEA is higher than HIA)

## Airports

### [Lianshui Airport (HIA)](https://www.flightduration.online/airport/hia-huaian-lianshui-airport/1ef266e0-2038-6310-b79d-06bb2780ed98)

- City: Huai'an, China
- ICAO: ZSSH
- Timezone: Asia/Shanghai
- Coordinates: 33.790000, 119.120000
- Elevation: 28 ft

### [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

## 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 12:33 in Huai'an, it's 21:33 in Seattle.
With a 15-hour time difference, expect significant jet lag.

## Related

- [Lianshui Airport (HIA)](https://www.flightduration.online/airport/hia-huaian-lianshui-airport/1ef266e0-2038-6310-b79d-06bb2780ed98)
- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Flight duration calculator](/#calculator)