# Distance from Athens (ATH) to Great Falls (GTF)

> 9,534 km · estimated flight time 12h · Ultra-long-haul route.

## Summary

- **Distance**: 9,534 km / 5,924 mi / 5,148 nm
- **Estimated flight time**: 12h
- **Heading**: 332° (north northwest)
- **Return heading**: 34° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Greece) → United States
- **Intercontinental**: Europe → North America
- **Time difference**: -9h (When it's 11:45 in Athens, it's 02:45 in Great Falls)
- **Elevation difference**: 3,372 ft (GTF is higher than ATH)

## Airports

### [Eleftherios Venizelos International Airport (ATH)](https://www.flightduration.online/airport/ath-athens-eleftherios-venizelos-international-airport/1ef266df-4dd8-66cc-be87-06bb2780ed98)

- City: Athens, Greece
- ICAO: LGAV
- Timezone: Europe/Athens
- Coordinates: 37.940000, 23.940000
- Elevation: 308 ft

### [Great Falls International Airport (GTF)](https://www.flightduration.online/airport/gtf-great-falls-great-falls-international-airport/1ef266df-1f14-6d90-96b1-06bb2780ed98)

- City: Great Falls, United States
- ICAO: KGTF
- Timezone: America/Denver
- Coordinates: 47.480000, -111.370000
- Elevation: 3,680 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 11:45 in Athens, it's 02:45 in Great Falls.
With a 9-hour time difference, expect significant jet lag.

## Related

- [Eleftherios Venizelos International Airport (ATH)](https://www.flightduration.online/airport/ath-athens-eleftherios-venizelos-international-airport/1ef266df-4dd8-66cc-be87-06bb2780ed98)
- [Great Falls International Airport (GTF)](https://www.flightduration.online/airport/gtf-great-falls-great-falls-international-airport/1ef266df-1f14-6d90-96b1-06bb2780ed98)
- [Flight duration calculator](/#calculator)