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

Return flights

14 Apr - 18 Apr	easyJet
20 Apr - 28 Apr	easyJet
11 Apr - 18 Apr	easyJet
17 Apr - 23 Apr	easyJet
13 Apr - 23 Apr	easyJet
08 Apr - 23 Apr	Aegean Airlines
15 Apr - 29 Apr	easyJet
08 Apr - 16 Apr	easyJet
10 Apr - 18 Apr	Aegean Airlines
08 Apr - 15 Apr	easyJet

Also check the deals for one-way flights from Athens 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.

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Cheapest return flights from Athens to Keflavik in April from 170€

Return flights