# Distance from Costanza (COZ) to Kathmandu (KTM)

> 14,228 km · estimated flight time 18h · Ultra-long-haul route.

## Summary

- **Distance**: 14,228 km / 8,841 mi / 7,682 nm
- **Estimated flight time**: 18h
- **Heading**: 27° (north northeast)
- **Return heading**: 331° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Dominican Republic) → Nepal
- **Intercontinental**: North America → Asia
- **Time difference**: +9.75h (When it's 12:24 in Costanza, it's 22:09 in Kathmandu)
- **Elevation difference**: 440 ft (KTM is higher than COZ)

## Airports

### [Constanza Dom Re Airport (COZ)](https://www.flightduration.online/airport/coz-costanza-constanza-dom-re-airport/1ef266df-5b94-6806-af01-06bb2780ed98)

- City: Costanza, Dominican Republic
- ICAO: MDCZ
- Timezone: America/Santo_Domingo
- Coordinates: 18.910000, -70.720000
- Elevation: 3,950 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 12:24 in Costanza, it's 22:09 in Kathmandu.
With a 9.75-hour time difference, expect significant jet lag.

## Related

- [Constanza Dom Re Airport (COZ)](https://www.flightduration.online/airport/coz-costanza-constanza-dom-re-airport/1ef266df-5b94-6806-af01-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)