# Distance from Houston (IAH) to Union Island (UNI)

> 3,988 km · estimated flight time 6h · Medium-haul route.

## Summary

- **Distance**: 3,988 km / 2,478 mi / 2,153 nm
- **Estimated flight time**: 6h
- **Heading**: 112° (east southeast)
- **Return heading**: 304° (northwest)
- **Classification**: Medium-haul
- **Type**: International (United States) → Saint Vincent
- **Time difference**: +1h (When it's 18:34 in Houston, it's 19:34 in Union Island)
- **Elevation difference**: 80 ft (UNI 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

### [Union Island International Airport (UNI)](https://www.flightduration.online/airport/uni-union-island-union-island-international-airport/1ef266df-e292-6308-afea-06bb2780ed98)

- City: Union Island, Saint Vincent
- ICAO: TVSU
- Timezone: America/St_Vincent
- Coordinates: 12.600000, -61.410000
- Elevation: 16 ft

## Route notes

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

Time-zone information: When it's 18:34 in Houston, it's 19:34 in Union Island.

## Related

- [George Bush Intcntl/Houston Airport (IAH)](https://www.flightduration.online/airport/iah-houston-george-bush-intcntlhouston-airport/1ef266df-22d4-6822-bae6-06bb2780ed98)
- [Union Island International Airport (UNI)](https://www.flightduration.online/airport/uni-union-island-union-island-international-airport/1ef266df-e292-6308-afea-06bb2780ed98)
- [Flight duration calculator](/#calculator)