Are there nonstop flights from Alice Springs (ASP) to Singapore (SIN)?

No. The fastest connection is via Darwin, about 6h 28m of total flying time.

What is the fastest connection from Alice Springs (ASP) to Singapore (SIN)?

via Darwin ≈ 6h 28m, via Perth ≈ 7h 56m, via Cairns ≈ 8h 36m (estimated flying time, excluding layovers).

from 23,000 JAL miles (economy, one way, based on the published award charts).

Alice Springs Airport (ASP) to Singapore Changi Airport (SIN)・4,274 km

No nonstop flights. The fastest connection is via Darwin (DRW), about 6h 28m of flying time (layover not included).

With milesJAL 23,000 miles+ (via DRW)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

7 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.