# Distance from Kathmandu (KTM) to Old Harbor (OLH)

> 9,104 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,104 km / 5,657 mi / 4,916 nm
- **Estimated flight time**: 12h
- **Heading**: 28° (north northeast)
- **Return heading**: 310° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -13.75h (When it's 18:49 in Kathmandu, it's 05:04 in Old Harbor)
- **Elevation difference**: 4,335 ft (OLH 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

### [Old Harbor Airport (OLH)](https://www.flightduration.online/airport/olh-old-harbor-old-harbor-airport/1ef266df-067e-64c0-83c2-06bb2780ed98)

- City: Old Harbor, United States
- ICAO: K6R7
- Timezone: America/Anchorage
- Coordinates: 57.220000, -153.270000
- Elevation: 55 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 18:49 in Kathmandu, it's 05:04 in Old Harbor.
With a 13.75-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)
- [Old Harbor Airport (OLH)](https://www.flightduration.online/airport/olh-old-harbor-old-harbor-airport/1ef266df-067e-64c0-83c2-06bb2780ed98)
- [Flight duration calculator](/#calculator)