# Distance from Sofia (SOF) to Quillayute (UIL)

> 9,458 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,458 km / 5,877 mi / 5,107 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 08:36 in Sofia, it's 22:36 in Quillayute)
- **Elevation difference**: 1,548 ft (UIL is lower than SOF)

## Airports

### [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)

- City: Sofia, Bulgaria
- ICAO: LBSF
- Timezone: Europe/Sofia
- Coordinates: 42.700000, 23.410000
- Elevation: 1,742 ft

### [Quillayute Airport (UIL)](https://www.flightduration.online/airport/uil-quillayute-quillayute-airport/1ef266df-3dda-6ae0-b6e8-06bb2780ed98)

- City: Quillayute, United States
- ICAO: KUIL
- Timezone: America/Los_Angeles
- Coordinates: 47.940000, -124.560000
- Elevation: 194 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 08:36 in Sofia, it's 22:36 in Quillayute.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Quillayute Airport (UIL)](https://www.flightduration.online/airport/uil-quillayute-quillayute-airport/1ef266df-3dda-6ae0-b6e8-06bb2780ed98)
- [Flight duration calculator](/#calculator)