# Distance from Nikolski (IKO) to Sofia (SOF)

> 9,321 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,321 km / 5,792 mi / 5,033 nm
- **Estimated flight time**: 12h
- **Heading**: 351° (north)
- **Return heading**: 7° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +12h (When it's 14:05 in Nikolski, it's 02:05 in Sofia)
- **Elevation difference**: 1,665 ft (SOF is higher than IKO)

## Airports

### [Nikolski Air Station (IKO)](https://www.flightduration.online/airport/iko-nikolski-nikolski-air-station/1ef266df-8715-6124-8471-06bb2780ed98)

- City: Nikolski, United States
- ICAO: PAKO
- Timezone: America/Adak
- Coordinates: 52.900000, -168.800000
- Elevation: 77 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 14:05 in Nikolski, it's 02:05 in Sofia.
With a 12-hour time difference, expect significant jet lag.

## Related

- [Nikolski Air Station (IKO)](https://www.flightduration.online/airport/iko-nikolski-nikolski-air-station/1ef266df-8715-6124-8471-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)