# Distance from Boston (BOS) to Simara (SIF)

> 11,902 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,902 km / 7,396 mi / 6,427 nm
- **Estimated flight time**: 15h
- **Heading**: 22° (north northeast)
- **Return heading**: 342° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Nepal
- **Intercontinental**: North America → Asia
- **Time difference**: +9.75h (When it's 18:56 in Boston, it's 04:41 in Simara)
- **Elevation difference**: 431 ft (SIF is higher than BOS)

## Airports

### [General Edward Lawrence Logan International Airport (BOS)](https://www.flightduration.online/airport/bos-boston-general-edward-lawrence-logan-international-airport/1ef266df-112a-6798-90da-06bb2780ed98)

- City: Boston, United States
- ICAO: KBOS
- Timezone: America/New_York
- Coordinates: 42.360000, -71.010000
- Elevation: 19 ft

### [Simara Airport (SIF)](https://www.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 18:56 in Boston, it's 04:41 in Simara.
With a 9.75-hour time difference, expect significant jet lag.

## Related

- [General Edward Lawrence Logan International Airport (BOS)](https://www.flightduration.online/airport/bos-boston-general-edward-lawrence-logan-international-airport/1ef266df-112a-6798-90da-06bb2780ed98)
- [Simara Airport (SIF)](https://www.flightduration.online/airport/sif-simara-simara-airport/1ef266df-f342-6950-adfb-06bb2780ed98)
- [Flight duration calculator](/#calculator)