# Distance from Aurora (BFK) to Sofia (SOF)

> 9,473 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,473 km / 5,886 mi / 5,115 nm
- **Estimated flight time**: 12h
- **Heading**: 35° (northeast)
- **Return heading**: 323° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +9h (When it's 05:11 in Aurora, it's 14:11 in Sofia)
- **Elevation difference**: 3,921 ft (SOF is lower than BFK)

## Airports

### [Buckley Space Force Base Airport (BFK)](https://www.flightduration.online/airport/bfk-aurora-buckley-space-force-base-airport/1ef266df-10bf-67c2-aea5-06bb2780ed98)

- City: Aurora, United States
- ICAO: KBKF
- Timezone: America/Denver
- Coordinates: 39.700000, -104.750000
- Elevation: 5,663 ft

### [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

## 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 05:11 in Aurora, it's 14:11 in Sofia.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Buckley Space Force Base Airport (BFK)](https://www.flightduration.online/airport/bfk-aurora-buckley-space-force-base-airport/1ef266df-10bf-67c2-aea5-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)