Are there nonstop flights from Manama (BAH) to Islamabad (ISB)?

Yes. Gulf Air, Fly Jinnah fly this route. Flight time is about 3h 11m.

What is the fastest connection from Manama (BAH) to Islamabad (ISB)?

via Doha ≈ 3h 49m, via Sharjah ≈ 3h 49m, via Dubai ≈ 3h 50m (estimated flying time, excluding layovers).

from 15,000 JAL miles (economy, one way, based on the published award charts).

Bahrain International Airport (BAH) to Islamabad International Airport (ISB)・2,281 km

Nonstop flights available (2 airlines). Flight time about 3h 11m. Nonstop return flights also operate.

With milesJAL 15,000 miles+ (via DOH)Economy, one way, estimate. Tap a connection for miles by cabin.

16 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.