# Distance from Johannesburg (JNB) to Atwater (MER)

> 16,833 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,833 km / 10,459 mi / 9,089 nm
- **Estimated flight time**: 21h
- **Heading**: 301° (west northwest)
- **Return heading**: 76° (east northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (South Africa) → United States
- **Intercontinental**: Africa → North America
- **Time difference**: -9h (When it's 09:40 in Johannesburg, it's 00:40 in Atwater)
- **Elevation difference**: 5,368 ft (MER is lower than JNB)

## Airports

### [O. R. Tambo International Airport (JNB)](https://www.flightduration.online/airport/jnb-johannesburg-o-r-tambo-international-airport/1ef266de-d3b0-6ec6-b1f2-06bb2780ed98)

- City: Johannesburg, South Africa
- ICAO: FAOR
- Timezone: Africa/Johannesburg
- Coordinates: -26.130000, 28.240000
- Elevation: 5,558 ft

### [Castle Airport (MER)](https://www.flightduration.online/airport/mer-atwater-castle-airport/1ef266df-2a82-6f4c-b75d-06bb2780ed98)

- City: Atwater, United States
- ICAO: KMER
- Timezone: America/Los_Angeles
- Coordinates: 37.400000, -120.600000
- Elevation: 190 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 09:40 in Johannesburg, it's 00:40 in Atwater.
With a 9-hour time difference, expect significant jet lag.

## Related

- [O. R. Tambo International Airport (JNB)](https://www.flightduration.online/airport/jnb-johannesburg-o-r-tambo-international-airport/1ef266de-d3b0-6ec6-b1f2-06bb2780ed98)
- [Castle Airport (MER)](https://www.flightduration.online/airport/mer-atwater-castle-airport/1ef266df-2a82-6f4c-b75d-06bb2780ed98)
- [Flight duration calculator](/#calculator)