# Distance from Putussibau-Borneo Island (PSU) to Sofia (SOF)

> 9,906 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 9,906 km / 6,155 mi / 5,349 nm
- **Estimated flight time**: 13h
- **Heading**: 313° (northwest)
- **Return heading**: 90° (east)
- **Classification**: Ultra-long-haul
- **Type**: International (Indonesia) → Bulgaria
- **Intercontinental**: Asia → Europe
- **Time difference**: -4h (When it's 15:02 in Putussibau-Borneo Island, it's 11:02 in Sofia)
- **Elevation difference**: 1,445 ft (SOF is higher than PSU)

## Airports

### [Pangsuma Airport (PSU)](https://www.flightduration.online/airport/psu-putussibau-borneo-island-pangsuma-airport/1ef266df-fda2-6cce-aedb-06bb2780ed98)

- City: Putussibau-Borneo Island, Indonesia
- ICAO: WIOP
- Timezone: Asia/Jakarta
- Coordinates: 0.840000, 112.940000
- Elevation: 297 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 15:02 in Putussibau-Borneo Island, it's 11:02 in Sofia.
The 4-hour time difference may cause some jet lag.

## Related

- [Pangsuma Airport (PSU)](https://www.flightduration.online/airport/psu-putussibau-borneo-island-pangsuma-airport/1ef266df-fda2-6cce-aedb-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)