AirHint found the following cheapest return flights from Reykjavik (REK) to Madrid (MAD) in August 2025 (see full year).

Return flights

29 Aug - 10 Sep	Transavia France
23 Aug - 30 Aug	Fly Play
04 Aug - 09 Aug	easyJet
14 Aug - 17 Aug	Wizz Air Malta
05 Aug - 10 Aug	Wizz Air Malta
07 Aug - 11 Aug	Wizz Air Malta
08 Aug - 12 Aug	Fly Play
01 Aug - 11 Aug	Transavia France
03 Aug - 12 Aug	Fly Play
29 Aug - 10 Sep	Fly Play	direct
03 Aug - 12 Aug	Iberia	direct
03 Aug - 10 Aug	Fly Play	direct

Also check the deals for one-way flights from Reykjavik to Madrid in August.

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 return flights from Reykjavik to Madrid in August from $299

Return flights