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

Return flights

08 Jun - 14 Jun	Transavia France
04 Jun - 16 Jun	Ryanair
16 Jun - 21 Jun	SKY express
07 Jun - 13 Jun	Wizz Air Malta
20 Jun - 28 Jun	Transavia France
18 Jun - 24 Jun	Scandinavian Airlines
01 Jun - 08 Jun	Transavia France
22 Jun - 27 Jun	Transavia France
25 Jun - 01 Jul	Scandinavian Airlines
25 Jun - 05 Jul	Transavia France
14 Jun - 21 Jun	Aegean Airlines
26 Jun - 03 Jul	easyJet
21 Jun - 30 Jun	Aegean Airlines
28 Jun - 04 Jul	Scandinavian Airlines

Also check the deals for one-way flights from Athens to Keflavik 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 Athens to Keflavik in June from 258€

Return flights