# Distance from Athens (ATH) to Fort Sill (FSI)

> 9,992 km · estimated flight time 13h · Ultra-long-haul route.

## Summary

- **Distance**: 9,992 km / 6,208 mi / 5,395 nm
- **Estimated flight time**: 13h
- **Heading**: 316° (northwest)
- **Return heading**: 42° (northeast)
- **Classification**: Ultra-long-haul
- **Type**: International (Greece) → United States
- **Intercontinental**: Europe → North America
- **Time difference**: -8h (When it's 06:36 in Athens, it's 22:36 in Fort Sill)
- **Elevation difference**: 880 ft (FSI 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

### [Henry Post Army Air Field (Fort Sill) Airport (FSI)](https://www.flightduration.online/airport/fsi-fort-sill-henry-post-army-air-field-fort-sill-airport/1ef266df-1cfa-6ffa-9bda-06bb2780ed98)

- City: Fort Sill, United States
- ICAO: KFSI
- Timezone: America/Chicago
- Coordinates: 34.650000, -98.400000
- Elevation: 1,188 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 06:36 in Athens, it's 22:36 in Fort Sill.
With a 8-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)
- [Henry Post Army Air Field (Fort Sill) Airport (FSI)](https://www.flightduration.online/airport/fsi-fort-sill-henry-post-army-air-field-fort-sill-airport/1ef266df-1cfa-6ffa-9bda-06bb2780ed98)
- [Flight duration calculator](/#calculator)