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

Return flights

21 Apr - 26 Apr	Wizz Air Malta
14 Apr - 22 Apr	Iberia Express
15 Apr - 23 Apr	Iberia Express
08 Apr - 22 Apr	Iberia Express
10 Apr - 20 Apr	easyJet
28 Apr - 06 May	Iberia Express
20 Apr - 26 Apr	Iberia Express
25 Apr - 03 May	Iberia Express
22 Apr - 03 May	Iberia
15 Apr - 21 Apr	Iberia Express
09 Apr - 21 Apr	Iberia Express
24 Apr - 29 Apr	easyJet
12 Apr - 19 Apr	LOT
27 Apr - 03 May	Scandinavian Airlines
26 Apr - 03 May	Iberia
17 Apr - 03 May	Wizz Air Malta
24 Apr - 03 May	Norwegian
25 Apr - 04 May	Iberia Express
27 Apr - 04 May	Iberia
26 Apr - 04 May	Iberia

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

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Madrid to Keflavik in April from 185€

Return flights