Are there nonstop flights from Sydney (SYD) to Athens (ATH)?

No. The fastest connection is via Dubai, about 19h 1m of total flying time.

What is the fastest connection from Sydney (SYD) to Athens (ATH)?

via Dubai ≈ 19h 1m, via Abu Dhabi ≈ 19h 1m, via Singapore ≈ 19h 2m (estimated flying time, excluding layovers).

from 40,000 ANA miles, from 47,000 JAL miles (economy, one way, based on the published award charts).

Sydney Kingsford Smith International Airport (SYD) to Athens Eleftherios Venizelos International Airport (ATH)・15,307 km

No nonstop flights. The fastest connection is via Dubai (DXB), about 19h 1m of flying time (layover not included).

With milesANA 40,000 miles+ (via IST)JAL 47,000 miles+ (via DXB)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

15 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.