# Distance from Houston (IAH) to Antsohihy (WAI)

> 15,914 km · estimated flight time 20h · Ultra-long-haul route.

## Summary

- **Distance**: 15,914 km / 9,889 mi / 8,593 nm
- **Estimated flight time**: 20h
- **Heading**: 74° (east northeast)
- **Return heading**: 300° (west northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Madagascar
- **Intercontinental**: North America → Africa
- **Time difference**: +8h (When it's 20:11 in Houston, it's 04:11 in Antsohihy)
- **Elevation difference**: 4 ft (WAI is lower than IAH)

## Airports

### [George Bush Intcntl/Houston Airport (IAH)](https://www.flightduration.online/airport/iah-houston-george-bush-intcntlhouston-airport/1ef266df-22d4-6822-bae6-06bb2780ed98)

- City: Houston, United States
- ICAO: KIAH
- Timezone: America/Chicago
- Coordinates: 29.980000, -95.340000
- Elevation: 96 ft

### [Ambalabe Airport (WAI)](https://www.flightduration.online/airport/wai-antsohihy-ambalabe-airport/1ef266de-dc13-6546-91cc-06bb2780ed98)

- City: Antsohihy, Madagascar
- ICAO: FMNW
- Timezone: Indian/Antananarivo
- Coordinates: -14.900000, 47.990000
- Elevation: 92 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 20:11 in Houston, it's 04:11 in Antsohihy.
With a 8-hour time difference, expect significant jet lag.

## Related

- [George Bush Intcntl/Houston Airport (IAH)](https://www.flightduration.online/airport/iah-houston-george-bush-intcntlhouston-airport/1ef266df-22d4-6822-bae6-06bb2780ed98)
- [Ambalabe Airport (WAI)](https://www.flightduration.online/airport/wai-antsohihy-ambalabe-airport/1ef266de-dc13-6546-91cc-06bb2780ed98)
- [Flight duration calculator](/#calculator)