# Distance from Richfield (RIF) to Sofia (SOF)

> 9,910 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 9,910 km / 6,158 mi / 5,351 nm
- **Estimated flight time**: 13h
- **Heading**: 31° (north northeast)
- **Return heading**: 327° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +9h (When it's 09:23 in Richfield, it's 18:23 in Sofia)
- **Elevation difference**: 3,576 ft (SOF is lower than RIF)

## Airports

### [Richfield Municipal Airport (RIF)](https://www.flightduration.online/airport/rif-richfield-richfield-municipal-airport/1ef266df-3523-665e-9bae-06bb2780ed98)

- City: Richfield, United States
- ICAO: KRIF
- Timezone: America/Denver
- Coordinates: 38.730000, -112.100000
- Elevation: 5,318 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 09:23 in Richfield, it's 18:23 in Sofia.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Richfield Municipal Airport (RIF)](https://www.flightduration.online/airport/rif-richfield-richfield-municipal-airport/1ef266df-3523-665e-9bae-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)