Cheapest one-way flights from Keflavik to Madrid in August from $161

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

One-Way flights

31 Aug Scandinavian Airlines
30 Aug easyJet
07 Aug KLM
16 Aug Wizz Air
03 Aug Wizz Air
09 Aug Iberia Express direct
23 Aug Iberia Express direct
16 Aug Iberia Express direct
27 Aug Iberia Express direct
13 Aug Iberia Express direct

Also check the deals for return flights from Keflavik to Madrid 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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