Cheapest return flights from Istanbul to Keflavik in May from $278

AirHint found the following cheapest return flights from Istanbul (SAW) to Keflavik (KEF) in May 2026 (see full year).

Return flights

19 May - 26 May Pegasus Airlines
16 May - 26 May Pegasus Airlines
19 May - 28 May Pegasus Airlines
12 May - 22 May Pegasus Airlines
21 May - 28 May AJet
09 May - 16 May Pegasus Airlines
24 May - 02 Jun Pegasus Airlines
10 May - 16 May Pegasus Airlines
24 May - 03 Jun Pegasus Airlines
24 May - 01 Jun Pegasus Airlines
12 May - 16 May Pegasus Airlines
04 May - 22 May Pegasus Airlines
21 May - 01 Jun Pegasus Airlines
24 May - 29 May Pegasus Airlines
25 May - 01 Jun Pegasus Airlines
22 May - 01 Jun Pegasus Airlines
23 May - 03 Jun Pegasus Airlines

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

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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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