Cheapest return flights from Madrid to Keflavik in April from $279

Best time to book flights for Madrid (MAD) to Keflavik (KEF) flights at AirHint

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

Return flights

13 Apr - 23 Apr Iberia Express
01 Apr - 19 Apr Lufthansa
01 Apr - 09 Apr SWISS
01 Apr - 16 Apr Lufthansa
03 Apr - 11 Apr SWISS
04 Apr - 12 Apr Iberia Express direct
01 Apr - 09 Apr Iberia Express direct
01 Apr - 16 Apr Iberia Express direct
02 Apr - 09 Apr easyJet
01 Apr - 15 Apr Iberia
30 Apr - 03 May Lufthansa

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

Skyscanner

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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