Cheapest return flights from Madrid to Keflavik in April from $207

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

Return flights

18 Apr - 26 Apr Iberia Express
16 Apr - 22 Apr Iberia
18 Apr - 22 Apr Iberia Express
18 Apr - 23 Apr Iberia Express
13 Apr - 26 Apr Iberia Express
19 Apr - 26 Apr Iberia
08 Apr - 22 Apr Iberia Express
21 Apr - 27 Apr Ryanair
20 Apr - 26 Apr Iberia
18 Apr - 27 Apr Iberia Express
21 Apr - 03 May Iberia Express
24 Apr - 03 May Iberia
18 Apr - 02 May Iberia Express
30 Apr - 09 May Ryanair
24 Apr - 04 May Iberia
30 Apr - 08 May Ryanair

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

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