# Distance from Jefferson (EFW) to Kathmandu (KTM)

> 12,264 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 12,264 km / 7,620 mi / 6,622 nm
- **Estimated flight time**: 15h
- **Heading**: 0° (north)
- **Return heading**: 360° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Nepal
- **Intercontinental**: North America → Asia
- **Time difference**: +10.75h (When it's 08:36 in Jefferson, it's 19:21 in Kathmandu)
- **Elevation difference**: 3,343 ft (KTM is higher than EFW)

## Airports

### [Jefferson Municipal Airport (EFW)](https://www.flightduration.online/airport/efw-jefferson-jefferson-municipal-airport/1ef266df-1974-6afc-9dbb-06bb2780ed98)

- City: Jefferson, United States
- ICAO: KEFW
- Timezone: America/Chicago
- Coordinates: 42.010000, -94.340000
- Elevation: 1,047 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 08:36 in Jefferson, it's 19:21 in Kathmandu.
With a 10.75-hour time difference, expect significant jet lag.

## Related

- [Jefferson Municipal Airport (EFW)](https://www.flightduration.online/airport/efw-jefferson-jefferson-municipal-airport/1ef266df-1974-6afc-9dbb-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)