Are there nonstop flights from Singapore (SIN) to Amman (AMM)?

No. The fastest connection is via Mumbai, about 10h 15m of total flying time.

What is the fastest connection from Singapore (SIN) to Amman (AMM)?

via Mumbai ≈ 10h 15m, via Dubai ≈ 10h 16m, via Muscat ≈ 10h 16m (estimated flying time, excluding layovers).

from 36,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Singapore Changi Airport (SIN) to Queen Alia International Airport (AMM)・7,859 km

No nonstop flights. The fastest connection is via Mumbai (BOM), about 10h 15m of flying time (layover not included).

With milesANA 36,000 miles+ (via ADD)JAL 37,000 miles+ (via DXB)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

25 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.