# Distance from Kathmandu (KTM) to New Philadelphia (PHD)

> 12,313 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 12,313 km / 7,651 mi / 6,648 nm
- **Estimated flight time**: 15h
- **Heading**: 349° (north)
- **Return heading**: 13° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -9.75h (When it's 09:55 in Kathmandu, it's 00:10 in New Philadelphia)
- **Elevation difference**: 3,496 ft (PHD 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

### [Harry Clever Field (PHD)](https://www.flightduration.online/airport/phd-new-philadelphia-harry-clever-field/1ef266df-3285-6ea6-b21a-06bb2780ed98)

- City: New Philadelphia, United States
- ICAO: KPHD
- Timezone: America/New_York
- Coordinates: 40.470000, -81.420000
- Elevation: 894 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 09:55 in Kathmandu, it's 00:10 in New Philadelphia.
With a 9.75-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)
- [Harry Clever Field (PHD)](https://www.flightduration.online/airport/phd-new-philadelphia-harry-clever-field/1ef266df-3285-6ea6-b21a-06bb2780ed98)
- [Flight duration calculator](/#calculator)