AirHint found the following cheapest return flights from Madrid (MAD) to Keflavik (KEF) in November 2025 (see full year).

Return flights

29 Nov - 09 Dec	Ryanair
28 Nov - 02 Dec	easyJet
27 Nov - 02 Dec	easyJet
29 Nov - 11 Dec	Ryanair
19 Nov - 27 Nov	easyJet
22 Nov - 02 Dec	Ryanair
15 Nov - 29 Nov	Ryanair
19 Nov - 24 Nov	easyJet
29 Nov - 07 Dec	LOT
19 Nov - 20 Nov	easyJet
23 Nov - 27 Nov	Ryanair
23 Nov - 29 Nov	Ryanair
22 Nov - 30 Nov	Ryanair
19 Nov - 23 Nov	easyJet
22 Nov - 29 Nov	Ryanair
23 Nov - 30 Nov	Ryanair
30 Nov - 04 Dec	Iberia
28 Nov - 04 Dec	Iberia Express
28 Nov - 01 Dec	Iberia Express
25 Nov - 11 Dec	Ryanair

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

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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Cheapest return flights from Madrid to Keflavik in November from $216

Return flights