# Distance from Ihosy (IHO) to St Louis (STL)

> 15,525 km · estimated flight time 19h · Ultra-long-haul route.

## Summary

- **Distance**: 15,525 km / 9,647 mi / 8,383 nm
- **Estimated flight time**: 19h
- **Heading**: 304° (northwest)
- **Return heading**: 79° (east)
- **Classification**: Ultra-long-haul
- **Type**: International (Madagascar) → United States
- **Intercontinental**: Africa → North America
- **Time difference**: -8h (When it's 04:22 in Ihosy, it's 20:22 in St Louis)
- **Elevation difference**: 1,883 ft (STL is lower than IHO)

## Airports

### [Ihosy Airport (IHO)](https://www.flightduration.online/airport/iho-ihosy-ihosy-airport/1ef266de-dc3a-681c-bc21-06bb2780ed98)

- City: Ihosy, Madagascar
- ICAO: FMSI
- Timezone: Indian/Antananarivo
- Coordinates: -22.400000, 46.160000
- Elevation: 2,500 ft

### [St Louis Lambert International Airport (STL)](https://www.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 04:22 in Ihosy, it's 20:22 in St Louis.
With a 8-hour time difference, expect significant jet lag.

## Related

- [Ihosy Airport (IHO)](https://www.flightduration.online/airport/iho-ihosy-ihosy-airport/1ef266de-dc3a-681c-bc21-06bb2780ed98)
- [St Louis Lambert International Airport (STL)](https://www.flightduration.online/airport/stl-st-louis-st-louis-lambert-international-airport/1ef266df-39ab-67da-9abe-06bb2780ed98)
- [Flight duration calculator](/#calculator)