# Distance from Fort Sill (FSI) to Kathmandu (KTM)

> 13,071 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 13,071 km / 8,122 mi / 7,058 nm
- **Estimated flight time**: 16h
- **Heading**: 356° (north)
- **Return heading**: 3° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Nepal
- **Intercontinental**: North America → Asia
- **Time difference**: +10.75h (When it's 01:07 in Fort Sill, it's 11:52 in Kathmandu)
- **Elevation difference**: 3,202 ft (KTM is higher than FSI)

## Airports

### [Henry Post Army Air Field (Fort Sill) Airport (FSI)](https://flightduration.online/airport/fsi-fort-sill-henry-post-army-air-field-fort-sill-airport/1ef266df-1cfa-6ffa-9bda-06bb2780ed98)

- City: Fort Sill, United States
- ICAO: KFSI
- Timezone: America/Chicago
- Coordinates: 34.650000, -98.400000
- Elevation: 1,188 ft

### [Tribhuvan International Airport (KTM)](https://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 01:07 in Fort Sill, it's 11:52 in Kathmandu.
With a 10.75-hour time difference, expect significant jet lag.

## Related

- [Henry Post Army Air Field (Fort Sill) Airport (FSI)](https://flightduration.online/airport/fsi-fort-sill-henry-post-army-air-field-fort-sill-airport/1ef266df-1cfa-6ffa-9bda-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)