Cheapest return flights from Madrid to Keflavik in August from 235€

Best time to book flights for Madrid (MAD) to Keflavik (KEF) flights at AirHint

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

Return flights

29 Aug - 07 Sep Iberia
30 Aug - 07 Sep Iberia
23 Aug - 07 Sep Iberia Express
30 Aug - 06 Sep Iberia
29 Aug - 06 Sep Iberia
19 Aug - 02 Sep British Airways
23 Aug - 30 Aug Iberia Express
23 Aug - 31 Aug Iberia Express
16 Aug - 30 Aug Iberia Express
16 Aug - 31 Aug Iberia Express
09 Aug - 17 Aug Iberia Express
23 Aug - 03 Sep Iberia Express
29 Aug - 08 Sep Iberia
18 Aug - 02 Sep Vueling Airlines
19 Aug - 27 Aug British Airways
31 Aug - 07 Sep Air Europa
19 Aug - 31 Aug British Airways
16 Aug - 28 Aug Iberia Express
25 Aug - 31 Aug Iberia
22 Aug - 27 Aug easyJet

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

Skyscanner

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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