Cheapest one-way flights from Madrid to Keflavik in September from 104€

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

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

One-Way flights

27 Sep Iberia Express direct
23 Sep easyJet
09 Sep Iberia Express direct
17 Sep Iberia Express direct
24 Sep Ryanair
10 Sep Iberia Express direct
08 Sep British Airways
22 Sep Iberia
02 Sep Iberia Express direct
07 Sep Iberia Express direct

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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