# Distance from Greybull (GEY) to Istanbul (IST)

> 9,550 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,550 km / 5,934 mi / 5,156 nm
- **Estimated flight time**: 12h
- **Heading**: 31° (north northeast)
- **Return heading**: 331° (north northwest)
- **Classification**: Ultra-long-haul
- **Type**: International (United States) → Turkey
- **Intercontinental**: North America → Asia
- **Time difference**: +9h (When it's 06:00 in Greybull, it's 15:00 in Istanbul)
- **Elevation difference**: 3,617 ft (IST is lower than GEY)

## Airports

### [South Big Horn County Airport (GEY)](https://www.flightduration.online/airport/gey-greybull-south-big-horn-county-airport/1ef266df-1e0b-643a-8021-06bb2780ed98)

- City: Greybull, United States
- ICAO: KGEY
- Timezone: America/Denver
- Coordinates: 44.520000, -108.080000
- Elevation: 3,942 ft

### [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

## 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 06:00 in Greybull, it's 15:00 in Istanbul.
With a 9-hour time difference, expect significant jet lag.

## Related

- [South Big Horn County Airport (GEY)](https://www.flightduration.online/airport/gey-greybull-south-big-horn-county-airport/1ef266df-1e0b-643a-8021-06bb2780ed98)
- [Istanbul Airport (IST)](https://www.flightduration.online/airport/ist-istanbul-istanbul-airport/1ef266df-5964-637e-b8a8-06bb2780ed98)
- [Flight duration calculator](/#calculator)