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

Return flights

15 Apr - 21 Apr	easyJet
15 Apr - 22 Apr	easyJet
08 Apr - 16 Apr	easyJet
15 Apr - 20 Apr	easyJet
18 Apr - 28 Apr	easyJet
07 Apr - 16 Apr	easyJet
14 Apr - 21 Apr	easyJet
20 Apr - 28 Apr	SKY express
16 Apr - 22 Apr	easyJet
08 Apr - 14 Apr	easyJet
30 Apr - 04 May	Scandinavian Airlines
30 Apr - 05 May	Scandinavian Airlines
26 Apr - 03 May	Scandinavian Airlines
30 Apr - 06 May	Wizz Air UK
30 Apr - 10 May	Lufthansa

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Athens to Keflavik in April from 196€

Return flights