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

Return flights

07 Mar - 18 Mar	easyJet
07 Mar - 11 Mar	easyJet
09 Mar - 16 Mar	Aegean Airlines
07 Mar - 15 Mar	easyJet
07 Mar - 13 Mar	Wizz Air UK
01 Mar - 10 Mar	easyJet
15 Mar - 21 Mar	Wizz Air UK
16 Mar - 21 Mar	Wizz Air UK
05 Mar - 12 Mar	Wizz Air UK
16 Mar - 23 Mar	Wizz Air UK
23 Mar - 01 Apr	Wizz Air UK
28 Mar - 04 Apr	Ryanair
28 Mar - 03 Apr	Scandinavian Airlines

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

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 March from 186€

Return flights