# Distance from Seattle (SEA) to Xining (XNN)

> 9,689 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,689 km / 6,021 mi / 5,232 nm
- **Estimated flight time**: 12h
- **Heading**: 326° (northwest)
- **Return heading**: 28° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → China
- **Intercontinental**: North America → Asia
- **Time difference**: +15h (When it's 19:33 in Seattle, it's 10:33 in Xining)
- **Elevation difference**: 432 ft (XNN is lower 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

### [Xining Caojiabu Airport (XNN)](https://www.flightduration.online/airport/xnn-xining-xining-caojiabu-airport/1ef266e0-1f37-62f4-a211-06bb2780ed98)

- City: Xining, China
- ICAO: ZLXN
- Timezone: Asia/Shanghai
- Coordinates: 36.530000, 102.040000
- Elevation: 0 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 19:33 in Seattle, it's 10:33 in Xining.
With a 15-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)
- [Xining Caojiabu Airport (XNN)](https://www.flightduration.online/airport/xnn-xining-xining-caojiabu-airport/1ef266e0-1f37-62f4-a211-06bb2780ed98)
- [Flight duration calculator](/#calculator)