# Distance from Derim (DER) to Sofia (SOF)

> 13,182 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,182 km / 8,191 mi / 7,118 nm
- **Estimated flight time**: 17h
- **Heading**: 316° (northwest)
- **Return heading**: 70° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Papua New Guinea) → Bulgaria
- **Intercontinental**: Oceania → Europe
- **Time difference**: -7h (When it's 18:02 in Derim, it's 11:02 in Sofia)
- **Elevation difference**: 3,108 ft (SOF is lower than DER)

## Airports

### [Derim Airport (DER)](https://www.flightduration.online/airport/der-derim-derim-airport/1ef266de-9b16-6b10-8bb6-06bb2780ed98)

- City: Derim, Papua New Guinea
- ICAO: AYDE
- Timezone: Pacific/Port_Moresby
- Coordinates: -6.140000, 147.110000
- Elevation: 4,850 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 18:02 in Derim, it's 11:02 in Sofia.
With a 7-hour time difference, expect significant jet lag.

## Related

- [Derim Airport (DER)](https://www.flightduration.online/airport/der-derim-derim-airport/1ef266de-9b16-6b10-8bb6-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)