# Distance from Sofia (SOF) to Spearfish (SPF)

> 8,996 km · estimated flight time 12h · Long-haul route.

## Summary

- **Distance**: 8,996 km / 5,590 mi / 4,857 nm
- **Estimated flight time**: 12h
- **Heading**: 325° (northwest)
- **Return heading**: 36° (northeast)
- **Classification**: Long-haul
- **Type**: International (Bulgaria) → United States
- **Intercontinental**: Europe → North America
- **Time difference**: -9h (When it's 18:24 in Sofia, it's 09:24 in Spearfish)
- **Elevation difference**: 2,191 ft (SPF is higher 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

### [Black Hills-Clyde Ice Field (SPF)](https://www.flightduration.online/airport/spf-spearfish-black-hills-clyde-ice-field/1ef266df-3948-6c5c-a35d-06bb2780ed98)

- City: Spearfish, United States
- ICAO: KSPF
- Timezone: America/Denver
- Coordinates: 44.480000, -103.790000
- Elevation: 3,933 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 18:24 in Sofia, it's 09:24 in Spearfish.
With a 9-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)
- [Black Hills-Clyde Ice Field (SPF)](https://www.flightduration.online/airport/spf-spearfish-black-hills-clyde-ice-field/1ef266df-3948-6c5c-a35d-06bb2780ed98)
- [Flight duration calculator](/#calculator)