Are there nonstop flights from Algiers (ALG) to Niamey (NIM)?

Yes. Air Algérie fly this route. Flight time is about 3h 32m.

What is the fastest connection from Algiers (ALG) to Niamey (NIM)?

via Ouagadougou ≈ 4h 44m, via Tunis ≈ 4h 56m, via Tripoli ≈ 5h 3m (estimated flying time, excluding layovers).

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

Houari Boumediene Airport (ALG) to Diori Hamani International Airport (NIM)・2,583 km

Nonstop flights available (1 airline). Flight time about 3h 32m. Nonstop return flights also operate.

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

9 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.