# Distance from Houston (IAH) to Riyan (RIY)

> 13,776 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,776 km / 8,560 mi / 7,439 nm
- **Estimated flight time**: 17h
- **Heading**: 42° (northeast)
- **Return heading**: 323° (northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Yemen
- **Intercontinental**: North America → Asia
- **Time difference**: +8h (When it's 11:15 in Houston, it's 19:15 in Riyan)
- **Elevation difference**: 42 ft (RIY 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

### [Mukalla International Airport (RIY)](https://www.flightduration.online/airport/riy-riyan-mukalla-international-airport/1ef266df-84ca-6a9a-b18b-06bb2780ed98)

- City: Riyan, Yemen
- ICAO: OYRN
- Timezone: Asia/Aden
- Coordinates: 14.660000, 49.380000
- Elevation: 54 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 11:15 in Houston, it's 19:15 in Riyan.
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)
- [Mukalla International Airport (RIY)](https://www.flightduration.online/airport/riy-riyan-mukalla-international-airport/1ef266df-84ca-6a9a-b18b-06bb2780ed98)
- [Flight duration calculator](/#calculator)