# Distance from San Diego/El Cajon (SEE) to Sofia (SOF)

> 10,697 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 10,697 km / 6,647 mi / 5,776 nm
- **Estimated flight time**: 14h
- **Heading**: 28° (north northeast)
- **Return heading**: 327° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +10h (When it's 15:54 in San Diego/El Cajon, it's 01:54 in Sofia)
- **Elevation difference**: 1,355 ft (SOF is higher than SEE)

## Airports

### [Gillespie Field (SEE)](https://www.flightduration.online/airport/see-san-diegoel-cajon-gillespie-field/1ef266df-37ed-6bfa-aaaa-06bb2780ed98)

- City: San Diego/El Cajon, United States
- ICAO: KSEE
- Timezone: America/Los_Angeles
- Coordinates: 32.830000, -116.970000
- Elevation: 388 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 15:54 in San Diego/El Cajon, it's 01:54 in Sofia.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Gillespie Field (SEE)](https://www.flightduration.online/airport/see-san-diegoel-cajon-gillespie-field/1ef266df-37ed-6bfa-aaaa-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)