# Distance from Rock Springs (RKS) to Sofia (SOF)

> 9,504 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,504 km / 5,905 mi / 5,132 nm
- **Estimated flight time**: 12h
- **Heading**: 33° (north northeast)
- **Return heading**: 326° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bulgaria
- **Intercontinental**: North America → Europe
- **Time difference**: +9h (When it's 15:33 in Rock Springs, it's 00:33 in Sofia)
- **Elevation difference**: 5,023 ft (SOF is lower than RKS)

## Airports

### [Southwest Wyoming Regional Airport (RKS)](https://flightduration.online/airport/rks-rock-springs-southwest-wyoming-regional-airport/1ef266df-354f-6b00-95c6-06bb2780ed98)

- City: Rock Springs, United States
- ICAO: KRKS
- Timezone: America/Denver
- Coordinates: 41.590000, -109.070000
- Elevation: 6,765 ft

### [Sofia Airport (SOF)](https://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 15:33 in Rock Springs, it's 00:33 in Sofia.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Southwest Wyoming Regional Airport (RKS)](https://flightduration.online/airport/rks-rock-springs-southwest-wyoming-regional-airport/1ef266df-354f-6b00-95c6-06bb2780ed98)
- [Sofia Airport (SOF)](https://flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)