# Distance from Kathmandu (KTM) to Santiago del Estero (SDE)

> 17,038 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 17,038 km / 10,587 mi / 9,200 nm
- **Estimated flight time**: 21h
- **Heading**: 263° (west)
- **Return heading**: 83° (east)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → Argentina
- **Intercontinental**: Asia → South America
- **Time difference**: -8.75h (When it's 23:21 in Kathmandu, it's 14:36 in Santiago del Estero)
- **Elevation difference**: 3,734 ft (SDE 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

### [Vicecomodoro Angel D. La Paz Aragones Airport (SDE)](https://www.flightduration.online/airport/sde-santiago-del-estero-vicecomodoro-angel-d-la-paz-aragones-airport/1ef266df-91ed-69ca-b566-06bb2780ed98)

- City: Santiago del Estero, Argentina
- ICAO: SANE
- Timezone: America/Argentina/Cordoba
- Coordinates: -27.770000, -64.310000
- Elevation: 656 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 23:21 in Kathmandu, it's 14:36 in Santiago del Estero.
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)
- [Vicecomodoro Angel D. La Paz Aragones Airport (SDE)](https://www.flightduration.online/airport/sde-santiago-del-estero-vicecomodoro-angel-d-la-paz-aragones-airport/1ef266df-91ed-69ca-b566-06bb2780ed98)
- [Flight duration calculator](/#calculator)