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

Return flights

22 Aug - 25 Aug	Fly Play	direct
26 Aug - 10 Sep	Wizz Air	direct
26 Aug - 04 Sep	Wizz Air
25 Aug - 01 Sep	Fly Play	direct
26 Aug - 04 Sep	Wizz Air	direct
27 Aug - 10 Sep	Wizz Air	direct
30 Aug - 06 Sep	Wizz Air
30 Aug - 10 Sep	Wizz Air
26 Aug - 11 Sep	Wizz Air	direct
28 Aug - 09 Sep	Wizz Air
26 Aug - 09 Sep	Wizz Air	direct
26 Aug - 27 Aug	Scandinavian Airlines
07 Aug - 12 Aug	Wizz Air
18 Aug - 25 Aug	Fly Play	direct
18 Aug - 22 Aug	Fly Play	direct
26 Aug - 31 Aug	Wizz Air
07 Aug - 14 Aug	Wizz Air
07 Aug - 21 Aug	Wizz Air
07 Aug - 10 Aug	Wizz Air
26 Aug - 28 Aug	Wizz Air	direct

Also check the deals for one-way flights from Warsaw 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 Warsaw to Keflavik in August from 158€

Return flights