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

Return flights

13 Jun - 23 Jun	easyJet
09 Jun - 17 Jun	Wizz Air UK
09 Jun - 21 Jun	Wizz Air UK
09 Jun - 14 Jun	Wizz Air UK
06 Jun - 14 Jun	Iberia Express
13 Jun - 21 Jun	Wizz Air UK
12 Jun - 21 Jun	Iberia Express
09 Jun - 16 Jun	Wizz Air UK
02 Jun - 09 Jun	Air Europa
01 Jun - 09 Jun	Wizz Air Malta
20 Jun - 02 Jul	Iberia
24 Jun - 01 Jul	Ryanair
24 Jun - 05 Jul	Ryanair
24 Jun - 02 Jul	Ryanair
27 Jun - 05 Jul	Iberia
27 Jun - 09 Jul	Iberia
27 Jun - 04 Jul	Iberia
28 Jun - 11 Jul	Air Europa
30 Jun - 07 Jul	easyJet
27 Jun - 11 Jul	Air Europa

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 211€

Return flights