# Distance from Ihosy (IHO) to Seattle (SEA)

> 17,045 km · estimated flight time 21h · Ultra-long-haul route.

## Summary

- **Distance**: 17,045 km / 10,592 mi / 9,204 nm
- **Estimated flight time**: 21h
- **Heading**: 342° (north northwest)
- **Return heading**: 24° (north northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Madagascar) → United States
- **Intercontinental**: Africa → North America
- **Time difference**: -10h (When it's 07:47 in Ihosy, it's 21:47 in Seattle)
- **Elevation difference**: 2,068 ft (SEA 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

### [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)

- City: Seattle, United States
- ICAO: KSEA
- Timezone: America/Los_Angeles
- Coordinates: 47.450000, -122.310000
- Elevation: 432 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 07:47 in Ihosy, it's 21:47 in Seattle.
With a 10-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)
- [Seattle-Tacoma International Airport (SEA)](https://www.flightduration.online/airport/sea-seattle-seattle-tacoma-international-airport/1ef266df-37e8-64a2-a4f1-06bb2780ed98)
- [Flight duration calculator](/#calculator)