# Distance from Merlo (RLO) to St Louis (STL)

> 8,326 km · estimated flight time 11h · Long-haul route.

## Summary

- **Distance**: 8,326 km / 5,174 mi / 4,496 nm
- **Estimated flight time**: 11h
- **Heading**: 340° (north northwest)
- **Return heading**: 158° (south southeast)
- **Classification**: Long-haul
- **Type**: International (Argentina) → United States
- **Intercontinental**: South America → North America
- **Time difference**: -2h (When it's 22:30 in Merlo, it's 20:30 in St Louis)
- **Elevation difference**: 1,404 ft (STL 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

### [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)

- City: St Louis, United States
- ICAO: KSTL
- Timezone: America/Chicago
- Coordinates: 38.750000, -90.370000
- Elevation: 617 ft

## Route notes

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

Time-zone information: When it's 22:30 in Merlo, it's 20:30 in St Louis.

## Related

- [Valle Del Conlara International Airport (RLO)](https://www.flightduration.online/airport/rlo-merlo-valle-del-conlara-international-airport/1ef266df-9228-6f70-a814-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)