# Distance from Simara (SIF) to St Louis (STL)

> 12,670 km · estimated flight time 16h · Ultra-long-haul route.

## Summary

- **Distance**: 12,670 km / 7,873 mi / 6,841 nm
- **Estimated flight time**: 16h
- **Heading**: 356° (north)
- **Return heading**: 5° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (Nepal) → United States
- **Intercontinental**: Asia → North America
- **Time difference**: -10.75h (When it's 17:00 in Simara, it's 06:15 in St Louis)
- **Elevation difference**: 167 ft (STL is higher than SIF)

## Airports

### [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

### [St Louis Lambert International Airport (STL)](https://flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)

- City: St Louis, United States
- ICAO: KSTL
- Timezone: America/Chicago
- Coordinates: 38.750000, -90.370000
- Elevation: 617 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 17:00 in Simara, it's 06:15 in St Louis.
With a 10.75-hour time difference, expect significant jet lag.

## Related

- [Simara Airport (SIF)](https://flightduration.online/airport/sif-simara-simara-airport/1ef266df-f342-6950-adfb-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)