# Distance from Big Piney (BPI) to Sofia (SOF)

> 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**: 32° (north northeast)
- **Return heading**: 328° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +9h (When it's 00:46 in Big Piney, it's 09:46 in Sofia)
- **Elevation difference**: 5,252 ft (SOF is lower than BPI)

## Airports

### [Miley Memorial Field (BPI)](https://www.flightduration.online/airport/bpi-big-piney-miley-memorial-field/1ef266df-1136-65a2-afa8-06bb2780ed98)

- City: Big Piney, United States
- ICAO: KBPI
- Timezone: America/Denver
- Coordinates: 42.580000, -110.110000
- Elevation: 6,994 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 00:46 in Big Piney, it's 09:46 in Sofia.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Miley Memorial Field (BPI)](https://www.flightduration.online/airport/bpi-big-piney-miley-memorial-field/1ef266df-1136-65a2-afa8-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)