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

Return flights

05 May - 12 May	Norwegian
05 May - 10 May	Norwegian
07 May - 12 May	Wizz Air	direct
07 May - 13 May	Wizz Air	direct
07 May - 10 May	Wizz Air	direct
05 May - 12 May	Wizz Air	direct
05 May - 10 May	Wizz Air	direct
02 May - 25 May	Lufthansa
02 May - 12 May	Wizz Air	direct
02 May - 04 May	LOT	direct
26 May - 13 Jun	Wizz Air	direct
26 May - 07 Jun	Wizz Air	direct

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

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 Warsaw to Keflavik in May from 153€

Return flights