# Distance from Alpine (ALE) to Sofia (SOF)

> 10,259 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,259 km / 6,374 mi / 5,539 nm
- **Estimated flight time**: 13h
- **Heading**: 36° (northeast)
- **Return heading**: 316° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +8h (When it's 20:24 in Alpine, it's 04:24 in Sofia)
- **Elevation difference**: 2,772 ft (SOF is lower than ALE)

## Airports

### [Alpine-Casparis Municipal Airport (ALE)](https://www.flightduration.online/airport/ale-alpine-alpine-casparis-municipal-airport/1ef266df-1898-69e4-ad69-06bb2780ed98)

- City: Alpine, United States
- ICAO: KE38
- Timezone: America/Chicago
- Coordinates: 30.380000, -103.680000
- Elevation: 4,514 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 20:24 in Alpine, it's 04:24 in Sofia.
With a 8-hour time difference, expect significant jet lag.

## Related

- [Alpine-Casparis Municipal Airport (ALE)](https://www.flightduration.online/airport/ale-alpine-alpine-casparis-municipal-airport/1ef266df-1898-69e4-ad69-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)