Cheapest one-way flights from Madrid to Keflavik in September from 72€

AirHint found the following cheapest one-way flights from Madrid (MAD) to Keflavik (KEF) in September 2025 (see full year).

One-Way flights

14 Sep Iberia Express direct
16 Sep Iberia Express direct
13 Sep Iberia Express direct
24 Sep Wizz Air Malta
17 Sep Wizz Air Malta
25 Sep Wizz Air Malta
10 Sep easyJet
11 Sep Wizz Air Malta
30 Sep Wizz Air Malta
23 Sep Ryanair

Also check the deals for return 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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