# Distance from Olney (ONY) to Sofia (SOF)

> 9,718 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,718 km / 6,039 mi / 5,247 nm
- **Estimated flight time**: 12h
- **Heading**: 38° (northeast)
- **Return heading**: 315° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +8h (When it's 23:03 in Olney, it's 07:03 in Sofia)
- **Elevation difference**: 467 ft (SOF is higher than ONY)

## Airports

### [Olney Municipal Airport (ONY)](https://www.flightduration.online/airport/ony-olney-olney-municipal-airport/1ef266df-30e1-6cf8-a606-06bb2780ed98)

- City: Olney, United States
- ICAO: KONY
- Timezone: America/Chicago
- Coordinates: 33.350000, -98.820000
- Elevation: 1,275 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 23:03 in Olney, it's 07:03 in Sofia.
With a 8-hour time difference, expect significant jet lag.

## Related

- [Olney Municipal Airport (ONY)](https://www.flightduration.online/airport/ony-olney-olney-municipal-airport/1ef266df-30e1-6cf8-a606-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)