# Distance from Riverton (RIW) to Sofia (SOF)

> 9,340 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,340 km / 5,803 mi / 5,043 nm
- **Estimated flight time**: 12h
- **Heading**: 33° (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 03:01 in Riverton, it's 12:01 in Sofia)
- **Elevation difference**: 3,774 ft (SOF is lower than RIW)

## Airports

### [Central Wyoming Regional Airport (RIW)](https://flightduration.online/airport/riw-riverton-central-wyoming-regional-airport/1ef266df-3537-63c0-b91e-06bb2780ed98)

- City: Riverton, United States
- ICAO: KRIW
- Timezone: America/Denver
- Coordinates: 43.060000, -108.460000
- Elevation: 5,516 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 03:01 in Riverton, it's 12:01 in Sofia.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Central Wyoming Regional Airport (RIW)](https://flightduration.online/airport/riw-riverton-central-wyoming-regional-airport/1ef266df-3537-63c0-b91e-06bb2780ed98)
- [Sofia Airport (SOF)](https://flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)