# Distance from Merlo (RLO) to Sofia (SOF)

> 12,272 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 12,272 km / 7,626 mi / 6,626 nm
- **Estimated flight time**: 15h
- **Heading**: 52° (northeast)
- **Return heading**: 244° (west southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Argentina) → Bulgaria
- **Intercontinental**: South America → Europe
- **Time difference**: +6h (When it's 05:02 in Merlo, it's 11:02 in Sofia)
- **Elevation difference**: 279 ft (SOF is lower than RLO)

## Airports

### [Valle Del Conlara International Airport (RLO)](https://www.flightduration.online/airport/rlo-merlo-valle-del-conlara-international-airport/1ef266df-9228-6f70-a814-06bb2780ed98)

- City: Merlo, Argentina
- ICAO: SAOS
- Timezone: America/Argentina/San_Luis
- Coordinates: -32.380000, -65.190000
- Elevation: 2,021 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 05:02 in Merlo, it's 11:02 in Sofia.
With a 6-hour time difference, expect significant jet lag.

## Related

- [Valle Del Conlara International Airport (RLO)](https://www.flightduration.online/airport/rlo-merlo-valle-del-conlara-international-airport/1ef266df-9228-6f70-a814-06bb2780ed98)
- [Sofia Airport (SOF)](https://www.flightduration.online/airport/sof-sofia-sofia-airport/1ef266df-436b-611c-bff1-06bb2780ed98)
- [Flight duration calculator](/#calculator)