# Distance from Istanbul (IST) to Union Island (UNI)

> 9,101 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,101 km / 5,655 mi / 4,914 nm
- **Estimated flight time**: 12h
- **Heading**: 280° (west)
- **Return heading**: 49° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Turkey) → Saint Vincent
- **Intercontinental**: Asia → North America
- **Time difference**: -7h (When it's 08:00 in Istanbul, it's 01:00 in Union Island)
- **Elevation difference**: 309 ft (UNI is lower than IST)

## Airports

### [Istanbul Airport (IST)](https://www.flightduration.online/airport/ist-istanbul-istanbul-airport/1ef266df-5964-637e-b8a8-06bb2780ed98)

- City: Istanbul, Turkey
- ICAO: LTFM
- Timezone: Europe/Istanbul
- Coordinates: 41.280000, 28.750000
- Elevation: 325 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 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 08:00 in Istanbul, it's 01:00 in Union Island.
With a 7-hour time difference, expect significant jet lag.

## Related

- [Istanbul Airport (IST)](https://www.flightduration.online/airport/ist-istanbul-istanbul-airport/1ef266df-5964-637e-b8a8-06bb2780ed98)
- [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)