Cheapest one-way flights from Madrid to Keflavik in December from 103€

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 December 2025 (see full year).

One-Way flights

08 Dec easyJet
08 Dec Fly Play direct
16 Dec Ryanair
22 Dec Iberia Express
30 Dec Iberia Express
29 Dec Iberia Express
26 Dec Iberia Express
22 Dec Fly Play direct
26 Dec Fly Play direct
29 Dec Fly Play direct

Also check the deals for return flights from Madrid to Keflavik in December.

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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