Are there nonstop flights from Athens (ATH) to Feldkirchen bei Graz (GRZ)?

No. The fastest connection is via Skiathos, about 2h 27m of total flying time.

What is the fastest connection from Athens (ATH) to Feldkirchen bei Graz (GRZ)?

via Skiathos ≈ 2h 27m, via Corfu ≈ 2h 31m, via Vienna ≈ 2h 41m (estimated flying time, excluding layovers).

from 15,000 ANA miles (economy, one way, based on the published award charts).

Athens Eleftherios Venizelos International Airport (ATH) to Graz Airport (GRZ)・1,223 km

No nonstop flights. The fastest connection is via Skiathos (JSI), about 2h 27m of flying time (layover not included).

With milesANA 15,000 miles+ (via VIE)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

17 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.