# Distance from Kathmandu (KTM) to Viedma / Carmen de Patagones (VDM)

> 16,785 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 16,785 km / 10,429 mi / 9,063 nm
- **Estimated flight time**: 21h
- **Heading**: 235° (southwest)
- **Return heading**: 107° (east southeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → Argentina
- **Intercontinental**: Asia → South America
- **Time difference**: -8.75h (When it's 04:58 in Kathmandu, it's 20:13 in Viedma / Carmen de Patagones)
- **Elevation difference**: 4,370 ft (VDM is lower than KTM)

## Airports

### [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)

- City: Kathmandu, Nepal
- ICAO: VNKT
- Timezone: Asia/Kathmandu
- Coordinates: 27.700000, 85.360000
- Elevation: 4,390 ft

### [Gobernador Castello Airport (VDM)](https://www.flightduration.online/airport/vdm-viedma-carmen-de-patagones-gobernador-castello-airport/1ef266df-92da-6e64-87a5-06bb2780ed98)

- City: Viedma / Carmen de Patagones, Argentina
- ICAO: SAVV
- Timezone: America/Argentina/Salta
- Coordinates: -40.870000, -63.000000
- Elevation: 20 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 04:58 in Kathmandu, it's 20:13 in Viedma / Carmen de Patagones.
With a 8.75-hour time difference, expect significant jet lag.

## Related

- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Gobernador Castello Airport (VDM)](https://www.flightduration.online/airport/vdm-viedma-carmen-de-patagones-gobernador-castello-airport/1ef266df-92da-6e64-87a5-06bb2780ed98)
- [Flight duration calculator](/#calculator)