# Distance from Mountain View (NUQ) to Sofia (SOF)

> 10,446 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 10,446 km / 6,491 mi / 5,640 nm
- **Estimated flight time**: 13h
- **Heading**: 25° (north northeast)
- **Return heading**: 333° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +10h (When it's 09:13 in Mountain View, it's 19:13 in Sofia)
- **Elevation difference**: 1,705 ft (SOF is higher than NUQ)

## Airports

### [Moffett Federal Airfield (NUQ)](https://www.flightduration.online/airport/nuq-mountain-view-moffett-federal-airfield/1ef266df-2f03-6170-8d05-06bb2780ed98)

- City: Mountain View, United States
- ICAO: KNUQ
- Timezone: America/Los_Angeles
- Coordinates: 37.420000, -122.050000
- Elevation: 37 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 09:13 in Mountain View, it's 19:13 in Sofia.
With a 10-hour time difference, expect significant jet lag.

## Related

- [Moffett Federal Airfield (NUQ)](https://www.flightduration.online/airport/nuq-mountain-view-moffett-federal-airfield/1ef266df-2f03-6170-8d05-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)