# Distance from Haskovo (HKV) to Seattle (SEA)

> 9,581 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,581 km / 5,953 mi / 5,173 nm
- **Estimated flight time**: 12h
- **Heading**: 339° (north northwest)
- **Return heading**: 23° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Bulgaria) → United States
- **Intercontinental**: Europe → North America
- **Time difference**: -10h (When it's 07:39 in Haskovo, it's 21:39 in Seattle)
- **Elevation difference**: 272 ft (SEA is higher than HKV)

## Airports

### [Uzundzhovo Air Base (HKV)](https://www.flightduration.online/airport/hkv-haskovo-uzundzhovo-air-base/1ef266df-4342-60fa-a105-06bb2780ed98)

- City: Haskovo, Bulgaria
- ICAO: LBHS
- Timezone: Europe/Sofia
- Coordinates: 41.980000, 25.590000
- Elevation: 160 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 07:39 in Haskovo, it's 21:39 in Seattle.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Uzundzhovo Air Base (HKV)](https://www.flightduration.online/airport/hkv-haskovo-uzundzhovo-air-base/1ef266df-4342-60fa-a105-06bb2780ed98)
- [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)