Are there nonstop flights from Athens (ATH) to Moscow (SVO)?

No. The fastest connection is via Istanbul, about 3h 43m of total flying time.

What is the fastest connection from Athens (ATH) to Moscow (SVO)?

via Istanbul ≈ 3h 43m, via Belgrade ≈ 4h, via Yerevan ≈ 5h 15m (estimated flying time, excluding layovers).

Athens Eleftherios Venizelos International Airport (ATH) to Sheremetyevo International Airport (SVO)・2,241 km

No nonstop flights. The fastest connection is via Istanbul (IST), about 3h 43m of flying time (layover not included).

None.

6 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.