# Distance from Carlsbad (CLD) to Kathmandu (KTM)

> 12,841 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,841 km / 7,979 mi / 6,934 nm
- **Estimated flight time**: 16h
- **Heading**: 338° (north northwest)
- **Return heading**: 21° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Nepal
- **Intercontinental**: North America → Asia
- **Time difference**: +12.75h (When it's 03:27 in Carlsbad, it's 16:12 in Kathmandu)
- **Elevation difference**: 4,060 ft (KTM is higher than CLD)

## Airports

### [Mc Clellan-Palomar Airport (CLD)](https://www.flightduration.online/airport/cld-carlsbad-mc-clellan-palomar-airport/1ef266df-1509-674c-baf4-06bb2780ed98)

- City: Carlsbad, United States
- ICAO: KCRQ
- Timezone: America/Los_Angeles
- Coordinates: 33.130000, -117.280000
- Elevation: 331 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 03:27 in Carlsbad, it's 16:12 in Kathmandu.
With a 12.75-hour time difference, expect significant jet lag.

## Related

- [Mc Clellan-Palomar Airport (CLD)](https://www.flightduration.online/airport/cld-carlsbad-mc-clellan-palomar-airport/1ef266df-1509-674c-baf4-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)