Cheapest return flights from Madrid to Keflavik in October from $202

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

25 Oct - 07 Nov Iberia Express
22 Oct - 28 Oct Iberia Express
10 Oct - 17 Oct Fly Play direct
25 Oct - 03 Nov Iberia Express
20 Oct - 27 Oct Iberia
31 Oct - 14 Nov Fly Play direct
18 Oct - 27 Oct Iberia Express
04 Oct - 03 Nov Iberia Express
17 Oct - 27 Oct easyJet
04 Oct - 13 Oct Iberia Express
07 Oct - 15 Oct Iberia Express
11 Oct - 14 Oct Iberia Express
01 Oct - 10 Oct Fly Play direct
04 Oct - 10 Oct Iberia Express
26 Oct - 04 Nov Ryanair
28 Oct - 04 Nov Ryanair
24 Oct - 09 Nov Fly Play
24 Oct - 02 Nov Iberia
14 Oct - 01 Nov easyJet
03 Oct - 02 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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