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

Return flights

09 Jun - 16 Jun	Wizz Air UK
16 Jun - 23 Jun	Wizz Air UK
20 Jun - 25 Jun	Wizz Air UK
05 Jun - 17 Jun	Wizz Air Malta
18 Jun - 25 Jun	Norwegian
06 Jun - 14 Jun	Norwegian
02 Jun - 16 Jun	Wizz Air UK
18 Jun - 23 Jun	Norwegian
12 Jun - 21 Jun	Iberia
20 Jun - 23 Jun	Wizz Air UK
30 Jun - 07 Jul	Wizz Air UK
20 Jun - 01 Jul	Wizz Air UK
30 Jun - 09 Jul	Wizz Air UK
30 Jun - 11 Jul	Wizz Air UK
20 Jun - 02 Jul	Wizz Air UK
29 Jun - 04 Jul	ITA Airways
29 Jun - 05 Jul	Iberia
24 Jun - 02 Jul	Transavia France
28 Jun - 04 Jul	Ryanair
29 Jun - 13 Jul	Iberia

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

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 June from 189€

Return flights