Cheapest return flights from Madrid to Keflavik in October from $208

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 October 2025 (see full year).

Return flights

12 Oct - 17 Oct Fly Play direct
31 Oct - 07 Nov Fly Play direct
31 Oct - 10 Nov Fly Play direct
22 Oct - 27 Oct Iberia Express
03 Oct - 13 Oct Air Europa
04 Oct - 14 Oct Ryanair
22 Oct - 26 Oct Iberia Express
22 Oct - 04 Nov Iberia Express
24 Oct - 03 Nov Fly Play direct
08 Oct - 17 Oct Fly Play direct
11 Oct - 14 Oct Iberia Express
04 Oct - 13 Oct Ryanair
03 Oct - 10 Oct Fly Play direct
21 Oct - 27 Oct Iberia Express
25 Oct - 07 Nov Iberia Express
25 Oct - 03 Nov Iberia Express
30 Oct - 06 Nov Iberia Express
31 Oct - 09 Nov Iberia Express
25 Oct - 01 Nov Iberia Express
17 Oct - 01 Nov Ryanair

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

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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