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

Return flights

17 Nov - 21 Nov	easyJet
17 Nov - 22 Nov	easyJet
10 Nov - 14 Nov	easyJet
24 Nov - 28 Nov	easyJet
24 Nov - 05 Dec	Fly Play	direct
12 Nov - 19 Nov	Wizz Air Malta
21 Nov - 28 Nov	easyJet
17 Nov - 23 Nov	easyJet
10 Nov - 15 Nov	easyJet
03 Nov - 07 Nov	Wizz Air Malta
11 Nov - 18 Nov	Iberia
28 Nov - 05 Dec	Fly Play	direct
28 Nov - 01 Dec	Fly Play	direct
29 Nov - 01 Dec	Transavia France
29 Nov - 08 Dec	Transavia France
29 Nov - 07 Dec	Transavia France
27 Nov - 08 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 175€

Return flights