Cheapest return flights from Madrid to Keflavik in September from 204€

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

Return flights

15 Sep - 23 Sep Ryanair
14 Sep - 23 Sep Wizz Air Malta
09 Sep - 19 Sep Transavia France
08 Sep - 15 Sep Iberia Express
26 Sep - 02 Oct Transavia France
15 Sep - 26 Sep Ryanair
07 Sep - 13 Sep Wizz Air Malta
09 Sep - 14 Sep Transavia France
01 Sep - 09 Sep easyJet
16 Sep - 26 Sep Wizz Air Malta
04 Sep - 14 Sep Transavia France
30 Sep - 08 Oct Ryanair
27 Sep - 02 Oct LOT

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

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