# Distance from Houston (IAH) to Sylhet (ZYL)

> 13,858 km · estimated flight time 17h · Ultra-long-haul route.

## Summary

- **Distance**: 13,858 km / 8,611 mi / 7,483 nm
- **Estimated flight time**: 17h
- **Heading**: 352° (north)
- **Return heading**: 8° (north)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Bangladesh
- **Intercontinental**: North America → Asia
- **Time difference**: +11h (When it's 14:34 in Houston, it's 01:34 in Sylhet)
- **Elevation difference**: 46 ft (ZYL 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

### [Osmany International Airport (ZYL)](https://www.flightduration.online/airport/zyl-sylhet-osmany-international-airport/1ef266df-f170-664a-b23d-06bb2780ed98)

- City: Sylhet, Bangladesh
- ICAO: VGSY
- Timezone: Asia/Dhaka
- Coordinates: 24.960000, 91.870000
- Elevation: 50 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 14:34 in Houston, it's 01:34 in Sylhet.
With a 11-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)
- [Osmany International Airport (ZYL)](https://www.flightduration.online/airport/zyl-sylhet-osmany-international-airport/1ef266df-f170-664a-b23d-06bb2780ed98)
- [Flight duration calculator](/#calculator)