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

Return flights

10 Jun - 14 Jun	Pegasus Airlines
13 Jun - 16 Jun	Wizz Air UK
13 Jun - 20 Jun	Wizz Air UK
14 Jun - 16 Jun	Scandinavian Airlines
13 Jun - 28 Jun	Pegasus Airlines
23 Jun - 30 Jun	Wizz Air UK
14 Jun - 20 Jun	Scandinavian Airlines
28 Jun - 02 Jul	KLM

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

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 June from 262€

Return flights