Cheapest one-way flights from Madrid to Keflavik in August from $94

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

One-Way flights

31 Aug Vueling Airlines direct
27 Aug Vueling Airlines direct
30 Aug Vueling Airlines direct
23 Aug Vueling Airlines direct
26 Aug Iberia Express direct
29 Aug Ryanair
24 Aug Fly Play direct
19 Aug Iberia Express
17 Aug Iberia Express
18 Aug Iberia Express

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

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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