Cheapest one-way flights from Istanbul to Keflavik in September from $134

AirHint found the following cheapest one-way flights from Istanbul (IST) to Keflavik (KEF) in September 2025 (see full year).

One-Way flights

16 Sep Wizz Air UK
03 Sep Wizz Air
18 Sep Wizz Air UK
19 Sep Turkish Airlines
15 Sep Turkish Airlines
10 Sep Wizz Air
09 Sep Pegasus Airlines
22 Sep Transavia France
14 Sep Wizz Air UK
06 Sep Wizz Air

Also check the deals for return flights from Istanbul to Keflavik in September.

Skyscanner

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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