AirHint found the following cheapest return flights from Madrid (MAD) to Keflavik (KEF) in January 2026 (see full year).

Return flights

14 Jan - 17 Jan	Iberia Express
16 Jan - 23 Jan	easyJet
12 Jan - 16 Jan	Wizz Air Malta
09 Jan - 12 Jan	Fly Play	direct
16 Jan - 23 Jan	Fly Play	direct
26 Jan - 30 Jan	Fly Play	direct
16 Jan - 19 Jan	Fly Play	direct
26 Jan - 02 Feb	Fly Play	direct
16 Jan - 18 Jan	easyJet
11 Jan - 16 Jan	Iberia
23 Jan - 06 Feb	easyJet
14 Jan - 20 Jan	Iberia Express
25 Jan - 01 Feb	Ryanair
19 Jan - 02 Feb	Fly Play	direct
30 Jan - 06 Feb	Fly Play	direct
30 Jan - 02 Feb	Fly Play	direct
31 Jan - 03 Feb	Ryanair
27 Jan - 03 Feb	Iberia
30 Jan - 16 Feb	Fly Play	direct
23 Jan - 06 Feb	Fly Play	direct

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

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 January from 161€

Return flights