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

Return flights

14 Jun - 17 Jun	easyJet
04 Jun - 07 Jun	Wizz Air Malta
21 Jun - 24 Jun	Wizz Air Malta
18 Jun - 22 Jun	SWISS
14 Jun - 18 Jun	easyJet
13 Jun - 17 Jun	easyJet
13 Jun - 21 Jun	easyJet
13 Jun - 18 Jun	easyJet
21 Jun - 24 Jun	Iberia Express	direct

Also check the deals for one-way flights from Keflavik to Madrid 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 Keflavik to Madrid in June from 229€

Return flights