Cheapest return flights from Madrid to Keflavik in May from 192€

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

Return flights

09 May - 19 May Wizz Air UK
25 May - 30 May Ryanair
20 May - 27 May Ryanair
11 May - 19 May Iberia
12 May - 20 May Wizz Air UK
09 May - 16 May Wizz Air UK
06 May - 09 May Ryanair
18 May - 30 May Wizz Air Malta
15 May - 23 May Wizz Air Malta
15 May - 20 May Wizz Air Malta
30 May - 09 Jun Norwegian
27 May - 10 Jun Scandinavian Airlines
29 May - 03 Jun Ryanair
29 May - 06 Jun Ryanair
22 May - 01 Jun Ryanair
29 May - 01 Jun Ryanair
27 May - 08 Jun Scandinavian Airlines
29 May - 08 Jun Ryanair
26 May - 05 Jun Wizz Air Malta

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

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