Cheapest one-way flights from Madrid to Keflavik in August from 135€

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

One-Way flights

29 Aug Iberia Express direct
26 Aug Iberia Express direct
27 Aug Iberia Express
12 Aug Ryanair
31 Aug Ryanair
11 Aug Iberia
04 Aug Ryanair
06 Aug Transavia France
14 Aug Iberia
12 Aug Iberia Express direct

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

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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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