# Distance from Decatur (DEC) to Kathmandu (KTM)

> 12,482 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,482 km / 7,756 mi / 6,740 nm
- **Estimated flight time**: 16h
- **Heading**: 6° (north)
- **Return heading**: 355° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Nepal
- **Intercontinental**: North America → Asia
- **Time difference**: +10.75h (When it's 01:38 in Decatur, it's 12:23 in Kathmandu)
- **Elevation difference**: 3,708 ft (KTM is higher than DEC)

## Airports

### [Decatur Airport (DEC)](https://www.flightduration.online/airport/dec-decatur-decatur-airport/1ef266df-16fa-6a42-8ebc-06bb2780ed98)

- City: Decatur, United States
- ICAO: KDEC
- Timezone: America/Chicago
- Coordinates: 39.830000, -88.870000
- Elevation: 682 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 01:38 in Decatur, it's 12:23 in Kathmandu.
With a 10.75-hour time difference, expect significant jet lag.

## Related

- [Decatur Airport (DEC)](https://www.flightduration.online/airport/dec-decatur-decatur-airport/1ef266df-16fa-6a42-8ebc-06bb2780ed98)
- [Tribhuvan International Airport (KTM)](https://www.flightduration.online/airport/ktm-kathmandu-tribhuvan-international-airport/1ef266df-f304-6ec0-afd1-06bb2780ed98)
- [Flight duration calculator](/#calculator)