# Distance from Athens (ATH) to Sion (SIR)

> 1,646 km · estimated flight time 3h · Medium-haul route.

## Summary

- **Distance**: 1,646 km / 1,023 mi / 889 nm
- **Estimated flight time**: 3h
- **Heading**: 309° (northwest)
- **Return heading**: 118° (east southeast)
- **Classification**: Medium-haul
- **Type**: International (Greece) → Switzerland
- **Time difference**: -1h (When it's 15:51 in Athens, it's 14:51 in Sion)
- **Elevation difference**: 1,277 ft (SIR 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

### [Sion Airport (SIR)](https://www.flightduration.online/airport/sir-sion-sion-airport/1ef266df-5741-6844-a33f-06bb2780ed98)

- City: Sion, Switzerland
- ICAO: LSGS
- Timezone: Europe/Zurich
- Coordinates: 46.220000, 7.330000
- Elevation: 1,585 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 15:51 in Athens, it's 14:51 in Sion.

## Related

- [Eleftherios Venizelos International Airport (ATH)](https://www.flightduration.online/airport/ath-athens-eleftherios-venizelos-international-airport/1ef266df-4dd8-66cc-be87-06bb2780ed98)
- [Sion Airport (SIR)](https://www.flightduration.online/airport/sir-sion-sion-airport/1ef266df-5741-6844-a33f-06bb2780ed98)
- [Flight duration calculator](/#calculator)