AirHint found the following cheapest return flights from Istanbul (SAW) to Keflavik (KEF) in August 2025 (see full year).

Return flights

16 Aug - 21 Aug	AJet
15 Aug - 22 Aug	AJet
25 Aug - 30 Aug	Pegasus Airlines
25 Aug - 31 Aug	Pegasus Airlines
26 Aug - 30 Aug	Pegasus Airlines
19 Aug - 26 Aug	Pegasus Airlines
26 Aug - 31 Aug	Pegasus Airlines
16 Aug - 23 Aug	AJet
01 Aug - 08 Aug	Pegasus Airlines
02 Aug - 08 Aug	Pegasus Airlines

Also check the deals for one-way flights from Istanbul to Keflavik in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Istanbul to Keflavik in August from $414

Return flights