The flight distance from Eleftherios Venizelos International Airport (ATH) in Athens, Greece to Sion Airport (SIR) in Sion, Switzerland is 1,646 kilometers (1,023 miles / 889 nautical miles). The estimated flight time for this route is approximately 3h, flying northwest at a heading of 309°.

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.

This is an international route connecting Greece with Switzerland. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 20:09 in Athens, it's 19:09 in Sion.

There is a significant elevation difference of 1,277 feet between the two airports. Sion Airport sits higher than Eleftherios Venizelos International Airport.

The return flight from Sion (SIR) to Athens (ATH) follows a heading of 118° (east southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Eleftherios Venizelos International Airport (ATH) and Sion Airport (SIR) detail pages, or use our flight duration calculator to compare other routes.