Cheapest return ATH–KEF flights, May

AirHint found the following cheapest return flights from Athens (ATH) to Keflavik (KEF) in May 2026 (see full year).

Return flights

20 May - 26 May Ryanair
11 May - 19 May Ryanair
20 May - 24 May Ryanair
06 May - 10 May Ryanair
05 May - 12 May Ryanair
06 May - 12 May Wizz Air
10 May - 19 May Wizz Air
20 May - 23 May Ryanair
05 May - 26 May Ryanair
10 May - 12 May Wizz Air
25 May - 04 Jun Ryanair
29 May - 01 Jun Ryanair
28 May - 04 Jun LOT
30 May - 04 Jun easyJet
28 May - 03 Jun LOT
29 May - 02 Jun Wizz Air
30 May - 17 Jun Vueling Airlines

Also check the deals for one-way flights from Athens to Keflavik in May.

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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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