# Distance from Houston (IAH) to Impfondo (ION)

> 12,149 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 12,149 km / 7,549 mi / 6,560 nm
- **Estimated flight time**: 15h
- **Heading**: 76° (east northeast)
- **Return heading**: 303° (west northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Congo
- **Intercontinental**: North America → Africa
- **Time difference**: +6h (When it's 02:33 in Houston, it's 08:33 in Impfondo)
- **Elevation difference**: 1,003 ft (ION is higher 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

### [Impfondo Airport (ION)](https://www.flightduration.online/airport/ion-impfondo-impfondo-airport/1ef266de-d690-615a-a20b-06bb2780ed98)

- City: Impfondo, Congo
- ICAO: FCOI
- Timezone: Africa/Brazzaville
- Coordinates: 1.620000, 18.070000
- Elevation: 1,099 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 02:33 in Houston, it's 08:33 in Impfondo.
With a 6-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)
- [Impfondo Airport (ION)](https://www.flightduration.online/airport/ion-impfondo-impfondo-airport/1ef266de-d690-615a-a20b-06bb2780ed98)
- [Flight duration calculator](/#calculator)