Are there nonstop flights from Abu Dhabi (AUH) to Singapore (SIN)?

Yes. Etihad Airways fly this route. Flight time is about 7h 25m.

What is the fastest connection from Abu Dhabi (AUH) to Singapore (SIN)?

via Chennai ≈ 7h 55m, via Kuala Lumpur ≈ 7h 56m, via Muscat ≈ 7h 56m (estimated flying time, excluding layovers).

from 23,000 JAL miles, from 36,000 ANA miles (economy, one way, based on the published award charts).

Zayed International Airport (AUH) to Singapore Changi Airport (SIN)・5,886 km

Nonstop flights available (1 airline). Flight time about 7h 25m. Nonstop return flights also operate.

With milesJAL 23,000 miles+ (via MCT)ANA 36,000 miles+ (via ADD)Economy, one way, estimate. Tap a connection for miles by cabin.

41 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.