# Distance from St Helens Airport (HLS) to Sofia (SOF)

> 15,541 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 15,541 km / 9,657 mi / 8,392 nm
- **Estimated flight time**: 19h
- **Heading**: 291° (west northwest)
- **Return heading**: 108° (east southeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Australia) → Bulgaria
- **Intercontinental**: Oceania → Europe
- **Time difference**: -7h (When it's 01:24 in St Helens Airport, it's 18:24 in Sofia)
- **Elevation difference**: 1,694 ft (SOF is higher than HLS)

## Airports

### [St Helens Airport (HLS)](https://www.flightduration.online/airport/hls-st-helens-airport/1ef266e0-1992-69ac-b5ce-06bb2780ed98)

- City: St Helens Airport, Australia
- ICAO: YSTH
- Timezone: Australia/Hobart
- Coordinates: -41.340000, 148.280000
- Elevation: 48 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 01:24 in St Helens Airport, it's 18:24 in Sofia.
With a 7-hour time difference, expect significant jet lag.

## Related

- [St Helens Airport (HLS)](https://www.flightduration.online/airport/hls-st-helens-airport/1ef266e0-1992-69ac-b5ce-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)