# Distance from Kathmandu (KTM) to Petersburg (PTB)

> 12,580 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,580 km / 7,817 mi / 6,793 nm
- **Estimated flight time**: 16h
- **Heading**: 345° (north northwest)
- **Return heading**: 16° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -9.75h (When it's 19:21 in Kathmandu, it's 09:36 in Petersburg)
- **Elevation difference**: 4,197 ft (PTB 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

### [Tri Cities Executive/Dinwiddie County Airport (PTB)](https://www.flightduration.online/airport/ptb-petersburg-tri-cities-executivedinwiddie-county-airport/1ef266df-33c6-6572-a633-06bb2780ed98)

- City: Petersburg, United States
- ICAO: KPTB
- Timezone: America/New_York
- Coordinates: 37.200000, -77.500000
- Elevation: 193 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 19:21 in Kathmandu, it's 09:36 in Petersburg.
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)
- [Tri Cities Executive/Dinwiddie County Airport (PTB)](https://www.flightduration.online/airport/ptb-petersburg-tri-cities-executivedinwiddie-county-airport/1ef266df-33c6-6572-a633-06bb2780ed98)
- [Flight duration calculator](/#calculator)