Are there nonstop flights from Istanbul (IST) to Reykjavík (KEF)?

Yes. Icelandair fly this route. Flight time is about 5h 20m.

What is the fastest connection from Istanbul (IST) to Reykjavík (KEF)?

via Billund ≈ 5h 50m, via Berlin ≈ 5h 51m, via Copenhagen ≈ 5h 51m (estimated flying time, excluding layovers).

from 15,000 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

İstanbul Airport (IST) to Keflavik International Airport (KEF)・4,113 km

Nonstop flights available (1 airline). Flight time about 5h 20m. Nonstop return flights also operate.

With milesANA 15,000 miles+ (via CPH)JAL 23,000 miles+ (via LHR)Economy, one way, estimate. Tap a connection for miles by cabin.

43 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.