# Distance from Imperial Beach (NRS) to Sofia (SOF)

> 10,729 km · estimated flight time 14h · Ultra-long-haul route.

## Summary

- **Distance**: 10,729 km / 6,667 mi / 5,793 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 01:56 in Imperial Beach, it's 11:56 in Sofia)
- **Elevation difference**: 1,719 ft (SOF is higher than NRS)

## Airports

### [Imperial Beach Nolf (Ream Field) Airport (NRS)](https://www.flightduration.online/airport/nrs-imperial-beach-imperial-beach-nolf-ream-field-airport/1ef266df-2ee5-685a-8d7c-06bb2780ed98)

- City: Imperial Beach, United States
- ICAO: KNRS
- Timezone: America/Los_Angeles
- Coordinates: 32.570000, -117.110000
- Elevation: 23 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 01:56 in Imperial Beach, it's 11:56 in Sofia.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Imperial Beach Nolf (Ream Field) Airport (NRS)](https://www.flightduration.online/airport/nrs-imperial-beach-imperial-beach-nolf-ream-field-airport/1ef266df-2ee5-685a-8d7c-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)