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

No. The fastest connection is via Berlin, about 5h 55m of total flying time.

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

via Berlin ≈ 5h 55m, via Copenhagen ≈ 5h 55m, via Budapest ≈ 5h 56m (estimated flying time, excluding layovers).

Keflavik International Airport (KEF) to Istanbul Sabiha Gökçen International Airport (SAW)・4,175 km

No nonstop flights. The fastest connection is via Berlin (BER), about 5h 55m of flying time (layover not included).

None.

33 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.