# Distance from Denver (DEN) to Simara (SIF)

> 12,496 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,496 km / 7,765 mi / 6,747 nm
- **Estimated flight time**: 16h
- **Heading**: 351° (north)
- **Return heading**: 8° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Nepal
- **Intercontinental**: North America → Asia
- **Time difference**: +11.75h (When it's 22:50 in Denver, it's 10:35 in Simara)
- **Elevation difference**: 4,984 ft (SIF is lower than DEN)

## Airports

### [Denver International Airport (DEN)](https://flightduration.online/airport/den-denver-denver-international-airport/1ef266df-1706-67b6-bf3a-06bb2780ed98)

- City: Denver, United States
- ICAO: KDEN
- Timezone: America/Denver
- Coordinates: 39.860000, -104.670000
- Elevation: 5,434 ft

### [Simara Airport (SIF)](https://flightduration.online/airport/sif-simara-simara-airport/1ef266df-f342-6950-adfb-06bb2780ed98)

- City: Simara, Nepal
- ICAO: VNSI
- Timezone: Asia/Kathmandu
- Coordinates: 27.160000, 84.980000
- Elevation: 450 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 22:50 in Denver, it's 10:35 in Simara.
With a 11.75-hour time difference, expect significant jet lag.

## Related

- [Denver International Airport (DEN)](https://flightduration.online/airport/den-denver-denver-international-airport/1ef266df-1706-67b6-bf3a-06bb2780ed98)
- [Simara Airport (SIF)](https://flightduration.online/airport/sif-simara-simara-airport/1ef266df-f342-6950-adfb-06bb2780ed98)
- [Flight duration calculator](/#calculator)