Cheapest one-way flights from Madrid to Keflavik in May from $88

Best time to book flights for Madrid (MAD) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest one-way flights from Madrid (MAD) to Keflavik (KEF) in May 2025 (see full year).

One-Way flights

13 May Wizz Air Malta
20 May Iberia
14 May Wizz Air Malta
19 May Iberia
02 May Transavia France
03 May Transavia France
10 May Ryanair
24 May Iberia Express direct
17 May Ryanair
28 May Iberia Express direct

Also check the deals for return flights from Madrid to Keflavik in May.

Skyscanner

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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