Are there nonstop flights from Singapore (SIN) to Heraklion (HER)?

No. The fastest connection is via Athens, about 12h of total flying time.

What is the fastest connection from Singapore (SIN) to Heraklion (HER)?

via Athens ≈ 12h, via Jeddah ≈ 12h 4m, via Istanbul ≈ 12h 4m (estimated flying time, excluding layovers).

from 29,500 ANA miles, from 47,000 JAL miles (economy, one way, based on the published award charts).

Singapore Changi Airport (SIN) to Heraklion International Nikos Kazantzakis Airport (HER)・8,907 km

No nonstop flights. The fastest connection is via Athens (ATH), about 12h of flying time (layover not included).

With milesANA 29,500 miles+ (via IST)JAL 47,000 miles+ (via CDG)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.