# Distance from Concord (CON) to Kathmandu (KTM)

> 11,784 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,784 km / 7,322 mi / 6,363 nm
- **Estimated flight time**: 15h
- **Heading**: 21° (north northeast)
- **Return heading**: 343° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Nepal
- **Intercontinental**: North America → Asia
- **Time difference**: +9.75h (When it's 23:19 in Concord, it's 09:04 in Kathmandu)
- **Elevation difference**: 4,048 ft (KTM is higher than CON)

## Airports

### [Concord Municipal Airport (CON)](https://www.flightduration.online/airport/con-concord-concord-municipal-airport/1ef266df-14ae-6b6c-ae25-06bb2780ed98)

- City: Concord, United States
- ICAO: KCON
- Timezone: America/New_York
- Coordinates: 43.200000, -71.500000
- Elevation: 342 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 23:19 in Concord, it's 09:04 in Kathmandu.
With a 9.75-hour time difference, expect significant jet lag.

## Related

- [Concord Municipal Airport (CON)](https://www.flightduration.online/airport/con-concord-concord-municipal-airport/1ef266df-14ae-6b6c-ae25-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)