# Distance from Adak Island (ADK) to Sofia (SOF)

> 9,322 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,322 km / 5,793 mi / 5,034 nm
- **Estimated flight time**: 12h
- **Heading**: 345° (north northwest)
- **Return heading**: 12° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +12h (When it's 17:54 in Adak Island, it's 05:54 in Sofia)
- **Elevation difference**: 1,723 ft (SOF is higher than ADK)

## Airports

### [Adak Airport (ADK)](https://www.flightduration.online/airport/adk-adak-island-adak-airport/1ef266df-862f-6fd4-8fcd-06bb2780ed98)

- City: Adak Island, United States
- ICAO: PADK
- Timezone: America/Adak
- Coordinates: 51.880000, -176.640000
- Elevation: 20 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 17:54 in Adak Island, it's 05:54 in Sofia.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Adak Airport (ADK)](https://www.flightduration.online/airport/adk-adak-island-adak-airport/1ef266df-862f-6fd4-8fcd-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)