# Distance from Concordia (COC) to Kathmandu (KTM)

> 16,463 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 16,463 km / 10,229 mi / 8,889 nm
- **Estimated flight time**: 20h
- **Heading**: 87° (east)
- **Return heading**: 255° (west southwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Argentina) → Nepal
- **Intercontinental**: South America → Asia
- **Time difference**: +8.75h (When it's 04:43 in Concordia, it's 13:28 in Kathmandu)
- **Elevation difference**: 4,278 ft (KTM is higher than COC)

## Airports

### [Comodoro Pierrestegui Airport (COC)](https://www.flightduration.online/airport/coc-concordia-comodoro-pierrestegui-airport/1ef266df-90d0-6dbc-9956-06bb2780ed98)

- City: Concordia, Argentina
- ICAO: SAAC
- Timezone: America/Argentina/Cordoba
- Coordinates: -31.300000, -58.000000
- Elevation: 112 ft

### [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

## 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 04:43 in Concordia, it's 13:28 in Kathmandu.
With a 8.75-hour time difference, expect significant jet lag.

## Related

- [Comodoro Pierrestegui Airport (COC)](https://www.flightduration.online/airport/coc-concordia-comodoro-pierrestegui-airport/1ef266df-90d0-6dbc-9956-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)