Cheapest one-way flights from Keflavik to Madrid in August from $163

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

One-Way flights

02 Aug easyJet
09 Aug easyJet
06 Aug Wizz Air
30 Aug easyJet
31 Aug Scandinavian Airlines
10 Aug Finnair
30 Aug Iberia Express direct
13 Aug Iberia Express direct
06 Aug Iberia Express direct
09 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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