AirHint found the following cheapest one-way flights from Reykjavik (REK) to Madrid (MAD) in October 2025 (see full year).

One-Way flights

27 Oct	Wizz Air Malta
31 Oct	Wizz Air Malta
20 Oct	Scandinavian Airlines
07 Oct	Scandinavian Airlines
14 Oct	Scandinavian Airlines
06 Oct	easyJet
15 Oct	easyJet
08 Oct	easyJet
22 Oct	easyJet
04 Oct	Wizz Air

Also check the deals for return flights from Reykjavik to Madrid in October.

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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Cheapest one-way flights from Reykjavik to Madrid in October from $73

One-Way flights