# Distance from Heihe (HEK) to Seattle (SEA)

> 7,282 km · estimated flight time 10h · Long-haul route.

## Summary

- **Distance**: 7,282 km / 4,525 mi / 3,932 nm
- **Estimated flight time**: 10h
- **Heading**: 44° (northeast)
- **Return heading**: 319° (northwest)
- **Classification**: Long-haul
- **Type**: International (China) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -15h (When it's 12:59 in Heihe, it's 21:59 in Seattle)
- **Elevation difference**: 8,098 ft (SEA is lower than HEK)

## Airports

### [Heihe Airport (HEK)](https://www.flightduration.online/airport/hek-heihe-heihe-airport/1ef266e0-2140-6e10-86b3-06bb2780ed98)

- City: Heihe, China
- ICAO: ZYHE
- Timezone: Asia/Shanghai
- Coordinates: 50.170000, 127.310000
- Elevation: 8,530 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 a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 12:59 in Heihe, it's 21:59 in Seattle.
With a 15-hour time difference, expect significant jet lag.

## Related

- [Heihe Airport (HEK)](https://www.flightduration.online/airport/hek-heihe-heihe-airport/1ef266e0-2140-6e10-86b3-06bb2780ed98)
- [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)