# Distance from Houston (IAH) to Ilam (IIL)

> 11,883 km · estimated flight time 15h · Ultra-long-haul route.

## Summary

- **Distance**: 11,883 km / 7,384 mi / 6,416 nm
- **Estimated flight time**: 15h
- **Heading**: 33° (north northeast)
- **Return heading**: 326° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Iran
- **Intercontinental**: North America → Asia
- **Time difference**: +8.5h (When it's 21:49 in Houston, it's 06:19 in Ilam)
- **Elevation difference**: 4,308 ft (IIL 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

### [Ilam Airport (IIL)](https://www.flightduration.online/airport/iil-ilam-ilam-airport/1ef266df-7d36-6432-9273-06bb2780ed98)

- City: Ilam, Iran
- ICAO: OICI
- Timezone: Asia/Tehran
- Coordinates: 33.590000, 46.400000
- Elevation: 4,404 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 21:49 in Houston, it's 06:19 in Ilam.
With a 8.5-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)
- [Ilam Airport (IIL)](https://www.flightduration.online/airport/iil-ilam-ilam-airport/1ef266df-7d36-6432-9273-06bb2780ed98)
- [Flight duration calculator](/#calculator)