Cheapest return flights from Madrid to Keflavik in September from 179€

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 September 2025 (see full year).

Return flights

27 Sep - 04 Oct Wizz Air Malta
10 Sep - 18 Sep Ryanair
11 Sep - 18 Sep Wizz Air Malta
07 Sep - 18 Sep Wizz Air Malta
13 Sep - 18 Sep Wizz Air Malta
12 Sep - 18 Sep Wizz Air Malta
13 Sep - 23 Sep Wizz Air Malta
16 Sep - 23 Sep Ryanair
11 Sep - 21 Sep Wizz Air Malta
14 Sep - 28 Sep Wizz Air Malta
14 Sep - 21 Sep Wizz Air Malta
28 Sep - 05 Oct Wizz Air Malta
21 Sep - 05 Oct Wizz Air Malta
27 Sep - 11 Oct Iberia Express
20 Sep - 04 Oct Vueling Airlines
29 Sep - 15 Oct Wizz Air Malta
20 Sep - 08 Oct Vueling Airlines
30 Sep - 14 Oct Wizz Air Malta
14 Sep - 01 Oct Wizz Air Malta
28 Sep - 01 Oct Wizz Air Malta

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

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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