# Distance from Kastoria (KSO) to Seattle (SEA)

> 9,601 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,601 km / 5,966 mi / 5,184 nm
- **Estimated flight time**: 12h
- **Heading**: 336° (north northwest)
- **Return heading**: 27° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Greece) → United States
- **Intercontinental**: Europe → North America
- **Time difference**: -10h (When it's 13:02 in Kastoria, it's 03:02 in Seattle)
- **Elevation difference**: 1,735 ft (SEA is lower than KSO)

## Airports

### [Kastoria National Airport (KSO)](https://www.flightduration.online/airport/kso-kastoria-kastoria-national-airport/1ef266df-4e00-6014-8602-06bb2780ed98)

- City: Kastoria, Greece
- ICAO: LGKA
- Timezone: Europe/Athens
- Coordinates: 40.450000, 21.280000
- Elevation: 2,167 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 13:02 in Kastoria, it's 03:02 in Seattle.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Kastoria National Airport (KSO)](https://www.flightduration.online/airport/kso-kastoria-kastoria-national-airport/1ef266df-4e00-6014-8602-06bb2780ed98)
- [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)