Cheapest return flights from Madrid to Keflavik in August from 255€

AirHint found the following cheapest return flights from Madrid (MAD) to Keflavik (KEF) in August 2026 (see full year).

Return flights

29 Aug - 15 Sep Iberia
28 Aug - 08 Sep Iberia Express
29 Aug - 08 Sep Vueling Airlines
29 Aug - 06 Sep Vueling Airlines
29 Aug - 12 Sep Vueling Airlines
28 Aug - 06 Sep Iberia Express
30 Aug - 08 Sep Iberia
27 Aug - 06 Sep Wizz Air Malta
31 Aug - 08 Sep Ryanair
25 Aug - 02 Sep Iberia
25 Aug - 30 Aug Ryanair
25 Aug - 31 Aug Iberia
24 Aug - 31 Aug Ryanair
20 Aug - 30 Aug Iberia
26 Aug - 30 Aug Ryanair
21 Aug - 30 Aug Iberia
12 Aug - 20 Aug Ryanair
21 Aug - 31 Aug Iberia Express
12 Aug - 22 Aug Ryanair
19 Aug - 30 Aug Iberia

Also check the deals for one-way flights from Madrid to Keflavik in August.

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